Macroeconomics Essay Example | Topics and Well Written Essays - 750 words

Macroeconomics - Essay Example Briefly identify and explain three methods intended to encourage economic growth for the typical firm in Hong Kong. Currently, various methods are being enacted by the government to encourage economic growth of the. These include: Adoption of free trading market policies Free markets have increased exports resulting in an increased revenue and surplus trading balance that increases the GDP, overall. Modern technological & labor advancement Boosting the technological sector has not only resulted in grooming of Hong Kong as a financial hub but has also increased the quality & quantity of production which has upgraded the manufacturing sector. Increased adoption of technology has improved the performance of labor, considerably. Adapting limited taxation strategy to attract Foreign Direct Investment Limited-tax policies, upgraded infrastructure and lenient incorporation procedures has played a major role in attracting Foreign Direct Investment. This capital inflow has not only increased revenue but has also decreased the unemployment level. Foreign Direct Investment is a major contributor to economy’s growth. ... ic growth is encoraged by productivity promotion, in accordance with the supply side of the economy, then there will be an increase in aggregerate supply as well as aggregerate demand resulting in a non-inflationary growth. Briefly describe Singapore’s economy (background, GDP, growth rate, etc.) Singapore is an open, trade-oriented economy which has a corruption-free government, skilled work-force, highly developed infrastructure with a good manufacturing sector mainly lead by electronics and biomedical manufacturing industries. GDP (2009): $182.23 billion GDP real growth rate (according to IMF 2009): negative 1.3% GDP real growth rate (according to CIA world of fact book 2010): 14.6% Per capita GDP (2009): $36,537 In 2009, the manufacturing sector with 26.3% and services sector with 69.1% has boosted Singapore’s economy. Briefly identify and explain three methods intended to encourage economic growth for the typical firm in Singapore. Following are few different metho d being used, to increase the economic growth for a typical firm in Singapore. Shifting towards service oriented economy Growth in the service sector increases the growth of overall economy. Financial services facilitates investment while telecommunications and power generation services helps to run a successful market economy. Birth of efficient-markets Establishment of efficeint markets, where prices are determined by supply and demand with few restrictions on trading of goods and services and adoption of free trade has increased healty competition, resulting in significant increase in exports and surplus balance of trade which ultimately boosts the economic growth. Approbation & implementation of business friendly policies Singapore Government has adapted business friendly policieswith a

Cell Structure And Transport Biology Essay

Cell Structure And Transport Biology Essay Cells can be split into two types, prokaryotic (see figure 1) and eukaryotic (See figure 2). Karyose originates from a Greek, meaning kernel, as in a kernel of grain. In physiology, it is used to refer to the nucleus of a cell. Pro means before, and eu means true. Therefore you could say that prokaryotic means before a nucleus and eukaryotic means possessing a true nucleus. (Wikipedia) Prokaryotic and eukaryotic cells have many differences and few similarities. Eukaryotic cells and lager than prokaryotic cells, a eukaryotic cell is usually 10nm in diameter where as a prokaryotic cell in 1nm in length.(Class Notes) Eukaryotic cells contain a nucleus, protected by a double membrane. Prokaryotic cells do not contain a nucleus. The purpose of the nucleus is to sequester the DNA-related functions of the big eukaryotic cell into a smaller chamber, for improved efficiency. This function is unnecessary for the prokaryotic cell as the cell is smaller and all materials within the cell are close together. However prokaryotic cells do have DNA and DNA functions. Eukaryotic DNA contains proteins called histones, and these are organised into chromosomes; prokaryotic DNA has no histones, there are no chromosomes in a prokaryotic cell. A eukaryotic cell contains a number of linear chromosomes; a prokaryotic cell contains only one circular DNA molecule and a varied assortment of much smaller circlets of DNA called plasmids. A prokaryotic cell is smaller and simpler; it requires far fewer genes to operate than the eukaryotic cell. (Rowlands, 2000) Eukaryotic cells contains large numbers of mitochondria, the number of these varies according to the size and type of cell. Mitochondria support the protein of the electron transport chain of the aerobic respiration within the cell supplying the cell with ATP, but this organelle is not located in a prokaryotic cell. (Williams) Eukaryotic cells also contain endoplasmic reticulum, however there is none present in a prokaryotic cell. Endoplasmic reticulum comes in two forms, rough and smooth. Rough endoplasmic reticulum helps to compartmentalize the cell, and it serves as routes for the transport of materials from one part of the cell to another. It is also associated with lipid synthesis and protein synthesis. Smooth endoplasmic reticulum is responsible for generating new layers for golgi bodies. Golgi bodies are stacks of sacs called cisternae. The function of golgi bodies is to process materials manufactured by the cell. The other kind of golgi vesicle contains materials to be secreted from the cell. These materials are not waste products but chemicals manufactured by the cell for export (hormones and pheromones for example). Prokaryotic and eukaryotic cells have many ribosomes, however the ribosomes of the eukaryotic cells are larger and more complex than those of the prokaryotic cell. Ribosomes are made out of a special class of RNA molecules and a specific collection of different proteins. A eukaryotic ribosome is made up of five types of rRNA and approximately eighty types of proteins. However a prokaryotic cell ¿Ã‚ ½s ribosomes are made up of only three types of rRNA and approximately fifty types of protein. The cytoplasm of eukaryotic cells contains a complex collection of organelles and many of the organelles are enclosed in their own membranes. However the prokaryotic cell contains no membrane-bound organelles that are independent of the plasma membrane. Some prokaryotic cells contain flagella. These organisms which are usually single celled and are used for locomotion. Unlike the flagellum of a eukaryotic cell, this mechanism lacks an internal structure. The prokaryotic flagellum is shaped like a corkscrew and propels the cell where as in a eukaryotic cell where the flagellum is more complex it moves in a lashing action. (Wikipedia) Prokaryotic and eukaryotic cells also differ in regards to what they store. A prokaryotic cell store specialised compounds in the form of granules or droplets. Where as a eukaryotic cell stores glycogen, starch, lipid and in some cases specialised materials of particular organisms. Prokaryotic cells are found in bacteria and blue green algae, eukaryotic cells are found in fungi plants and animals. (Class Notes) To summarise, prokaryotic and eukaryotic cells are similar in the fact that they are both are contained by plasma membranes, filled with cytoplasm and also contain ribosomes. Both contain the same kind of DNA as the genetic code for a prokaryotic cell is the same for a eukaryotic cell. However they have many materials present in a eukaryotic cell which are not present in a prokaryotic cell. This is because a eukaryotic cell is much more complex and has more complex process to complete. Microscopic appearance of squamous cells 2. The attached diagram represents an electron micrograph of a liver cell. Identify the structures: Label A Rough Endoplasmic reticulum B Mitochondria C Nucleus D Nucleus Membrane E Cell Membrane F Smooth endoplasmic reticulum G Cytoplasm 3. Using appropriate detail with diagrams and sizes where needed, explain how the structure of the following organelles is related to their function: A: Rough Endoplasmic reticulum Most ribosomes are attached to the surface of the rough endoplasmic reticulum. The endoplasmic reticulum is a series of interconnecting flattened tubular tunnels, which are continuous with the outer membrane of the nucleus. It runs through the cytoplasm of all eukaryotic cells. The ER of a cell often takes up more than a tenth of the total cell volume. Rough ER appears rough due to the presence of ribosomes on the membrane. The rough ER is concerned with the transportation of proteins, which are made by the ribosomes on the surface of the membranes. The membranes form a series of sheets known as lamellae of reticulum, and these enclose flattened sacs called cisternae. The purpose of this is to form a maze-like structure so that there is a very large surface area for chemical reactions to take place. Information coded in DNA sequences in the nucleus is transcribed as messenger RNA. Messenger RNA exits the nucleus through pores in the nuclear envelope to enter the cytoplasm. At the rib osomes on the rough ER, the messenger RNA is translated into proteins. The newly made proteins are taken into the tubes of the rough ER so that they cannot escape into the cytoplasm, and are threaded through pores in the membrane to accumulate in the cisternal space where they can fold into their normal three-dimensional shape. Proteins made by the rough ER are then either secreted or used where they are needed within the cell. (Roberts, 2009) B: Mitochondria The mitochondrion produces energy in the form of ATP (adenosine triphosphate), which is produced when organic compounds are completely broken down to carbon dioxide and water. One of the main conditions for this process to occur is the presence oxygen. Each mitochondrion has a double-membrane system. The inner membrane is folded repeatedly and it is also known as cristae. The outer membrane faces the cytoplasm. This complex system creates two divisions. In the outer division, enzymes and other proteins stockpile hydrogen ions. These ions then flow into the inner compartment. The energy inherent creates ATP-formation. Hydrogen binds with oxygen to produce the end product, water. (Roberts, 2009) C: Nucleus The nucleus is usually spherical and about 10 ¿Ã‚ ½m across, it has two main functions. Firstly, it segregates all the DNA molecules from the cytoplasm. Secondly, the nuclear membranes administer as a boundary where cells control the movement of substances to and from the cytoplasm. The nucleus is made up from a few constituents. The nuclear envelope is a double-membrane system that has two lipid bilayers in which many protein molecules are firmly established. This prevents water-soluble substances to move without restriction into and out of a nucleus. The second component is nucleolus, which is a highly packed cluster of RNA and proteins, which construct to make subunits of ribosomes. (Roberts, 2009) 4. The structures A and F may be functionally associated in extracellular secretions (as for example salivary glands). Give an illustrated answer to show this association. The rough endoplasmic reticulum is involved in the formation of the Golgi body. The Golgi body is created by the rough endoplasmic reticulum as a sequence of vesicles containing protein. As these come together the protein modifies with carbohydrate molecules attached, this leading to glycopeptides being produced. The glycopeptides are then  ¿Ã‚ ½pinched ¿Ã‚ ½ from the ends of the Golgi body and move toward the cytoplasmic membrane. These then fuse together and a material is secreted. (Class Notes) 5. Lysosomes are important in certain intracellular activities. Using a sequence of annotated diagrams, show the signifigance of these structures in the destruction of unwanted organelles. Lysosomes are organelles that contain digestive enzymes referred to as acid hydrolases. They dissolve and digest excess or worn out organelles,(see figure 4) food particles, and engulfed viruses or bacteria. The membrane surrounding a lysosome prevents the digestive enzymes inside from destroying the cell. Lysosomes fuse with vacuoles and dispense their enzymes into the vacuoles, digesting their contents. They are built in the Golgi apparatus. (humpath.com) 6. Using diagrams describe the basic chemical structure of the cell membrane (the bimolecular components) and explain why this structure is referred to as the  ¿Ã‚ ½fluid mosaic model ¿Ã‚ ½. The cell membrane separates a watery cytoplasm from a watery external environment also referred to as the extracellular fluid. The phospholipids are arranged in a double layer (lipid layer) with the hydrophilic heads facing outward (cytoplasm or extracellular fluid) and the hydrophilic tails turned in towards each other. The unsaturated fatty acids are not bonded to each other therefore forming a fluid. (Williams) Embedded within the lipid bilayer are different proteins (hydrophobic parts interact with the hydrophobic tails of the phospholipids). The hydrophilic parts of the proteins protrude either in to the cytoplasm or into the extracellular fluid. Some of the proteins are anchored in place while other proteins move about within the bilayer. (Williams) Various organelles within the cytoplasm are also bounded by membranes similar in structure to the cell membrane except for specific combinations of lipids and proteins depending on the particular functions of the organelle. (Williams) Some of the proteins extending into the extracellular fluid have carbohydrates (glycoprotein) attached. Fluid mosaic model (Figure 6) The term  ¿Ã‚ ½fluid ¿Ã‚ ½ is used because the phospholipid molecules and proteins that make up the membrane are free to drift around in fluid motion. The term  ¿Ã‚ ½mosaic ¿Ã‚ ½ is used to describe the position of the protein molecules. The molecules are placed randomly and there is no set pattern. (Wikipedia) b. Describe concisely how the phospholipids and the protein molecules in the cell membrane make the membrane selectively permeable and are involved in cell recognition as the therapy using tissues typing/ blood transfusion. The cell surface membrane is the boundary between the cell and its environment; it has very little mechanical strength but plays a vital role in controlling which materials pass into and out of the cell. Cell membranes contain phospholipids, proteins, cholesterol and polysaccharides. The phospholipids are a major constituent of cell membranes. They naturally form membranes in water because they automatically arrange themselves into a bilayer that is practically impermeable to water and anything that is water soluble. ¿Ã‚ ½ The membrane proteins act as hydrophilic pores; these are water filled channels that allow water-soluble chemicals to pass through. These pores are usually small and highly selective, proteins in the membrane that form pores usually span the entire membrane, but other proteins with other functions can occur only in the top or bottom layer of lipids. Some membrane proteins serve as carrier molecules in which ions pass through channels in the protein molecule. The movement of ions may occur through facilitated diffusion. The ions may also move against a diffusion gradient in a process known as active transport. Unlike facilitated diffusion, active transport requires ATP. Membrane proteins may also be associated with cell recognition in which patrolling T-cells and antibodies recognize the shape of membrane proteins as self or foreign. These membrane proteins often contain unique carbohydrate chains (antennae) which are involved in the cell recognition process. Recognition glycoproteins may include receptor sites for some hormones and neurotransmitters and various blood antigens. (Cellsalive.com)

Death Penalty and Deterrence Essay examples -- Capital Punishment Crim

Death Penalty and Deterrence Ever since the beginning of time man has committed crimes. Crimes were described as acts which go against the social and moral norms of society and people. People have learned to deal with these crimes in many different ways. One of the most used forms of dealing with crime is punishing those who commit crimes. There are numerous ways in which people have punished those who commit crimes throughout history from making the criminal pay fines to banishing them from the community. However, in modern times, there are fewer acceptable forms of punishment that are used. For very unserious crimes, governments may simply make a criminal pay a small fine or do service for the community in some way. Offenders who commit more serious crimes may be forced to spend months or years in jail or prison. However, for the most serious crime of premeditated murder there is an even greater punishment; the punishment of death. According to Jacquelyn C. Black, since 1976 when the death penalty was reinstat ed, over 821 men and women have been executed in the United States. Capital punishment is one of the most hotly debated issues in politics and criminal justice today. The ability of the government and the judicial system to punish a criminal in the most severe way, the taking of their ability to live, is an issue that is discussed and evaluated nearly every day. Capital punishment has its roots in history though. Ever since man has formed societies he has used capital punishment as a form of punishment for criminals. The United States has also been using capital punishment for a long time. Many people think that capital punishment is a very barbaric form of punishment that should be gotten rid of. They think that no civilized nation should allow such sanctioned brutality. P61According to Ron Fridell, ?capital punishment has been abolished in all of Europe and most of Latin America, as well as Australia, New Zealand, and Canada. The United States remains the only Western nation in which capital punishment is still practiced.? Other people think that t he death penalty is an effective and just way of punishing offenders for the most heinous of crimes. This paper will try to describe the death penalty, where it came from, and its role in the judicial system today. The purpose of capital punishment is also a debated issue in the subject. Most ... ... and decrease murder rates. Constan p102 says that ?other factors that influence murder rates are unemployment, probability of arrest and conviction, percent of the population between the ages of fifteen and twenty-four, per capita financial expenditures on the police force, and other factors.? He also states that none of these factors seem to affect the crime rate though none is major enough to completely cause major changes. End Notes Davis, Michael. Justice in the Shadow of Death: Rethinking Capital and Lesser Punishments. New York: Rowman & Littlefield Publishers, Inc, 1996 Kronenwetter, Michael. Capital Punishment. Santa Barbara: ABC- CLIO, Inc, 1993. Bedau, Hugo Adam., and Pierce, Chester M. Capital Punishment in the United States. New York: AMS Press, Inc, 1975.   Ã‚  Ã‚  Ã‚  Ã‚  Megivern, James J. The Death Penalty: An Historical and Theological Survey.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  New York: Paulist Press, 1997.   Ã‚  Ã‚  Ã‚  Ã‚  Fridell, Ron. Capital Punishment. New York: Benchmark Books, 2004. Costanzo, Mark. Just Revenge: Costs and Consequences of the Death Penalty. New York: St. Martin?s Press, 1997. Goldberg, Steven. ?So What if the Death Penalty Deters World Wide Web.1989.

Courtroom Visit Essay

The Judiciary’s role is to give everyone fair access to the courts to solve legal problems fairly and efficiently, decide justly the guilt or innocence of anyone charged with a crime, and interpret the laws and protect the rights and liberties guaranteed by the Constitutions of California and the United States. Criminal court is where you go when the state believes you have committed a crime and it files charges against you. The Criminal Court has jurisdiction over infraction, misdemeanor and felony cases. The Criminal Court conducts trials, motions, arraignments, preliminary hearings, probation hearings, mental health proceedings, and other types of criminal proceedings. In this essay I will be discussing my visit to the Orange County Courthouse in Santa Ana on March 26, 2014 and my observations of the criminal proceedings in Department C58. In the courtroom were the public defenders, the district attorneys, private attorneys, court clerks, a court reporter, a bailiff, a resident probation officer, the judge, in custody defendants, out of custody defendants, spectators in the audience and when needed an interpreter. The defendants were charged with a variety of different crimes including petty theft, drunk in public, under the influence of a controlled substance, possession of paraphernalia and more serious crimes including possession of a controlled substance for sales, possession of a fire arm, commercial burglary, forgery, fraud and counterfeiting as well as probation violations. The judge took the bench at around 9:30 am and started with the defendants that were charged with misdemeanor offenses. The judge called each defendant’s name; each defendant would step up to the podium, the judge then gave notice of the charges the defendant was currently being accused of. On several occasions the judge called the name of a defendant that was not present, she then issued an arrest warrant for the defendant, revoking their current bail, in some cases a new bail was set but the majority of the warrant’s had no bail amount. For the defendants that were present out of custody the judge would offer the defendant a sentence for the charges and asked for the defendant’s plea to the charges. If the defendant wished to plead not guilty to the charges, which commonly occurred, the judge then appointed the public defender’s office to represent the defendant for the  matter. In several cases the defendants were charged with a misdemeanor including under the influence of a controlled substance (HS 11550 a), possession of paraphernalia (HS 11364), petty theft (PC 484 a) and drunk in public (PC 647), these defendants provided the county with a sample of their DNA, they were required to pay a $75 collection fee and then charges against them were dismissed. After the judge completed the misdemeanor cases she moved on to the felony cases, which were more complex. Just like with the misdemeanor cases, the judge would call the name of the defendant and have them step up to the podium, she would then give them notice of the charges against them and ask if they were able to afford an attorney if they were not able to do so she then would appoint the public defender’s to represent the defendant. The cases that I observed were in a variety of different stages of the criminal case proceedings. Theses stages included arraignments, pre trials, preliminary hearing and sentencing. In most of the cases the judge would calendar the case for a further date. In these cases the defendant is notified of their constitutional right to a speedy trial and in order to set the case for a continuance the defendant had to agree to waive this right. The defendant’s that decided to plead guilty to their charges were notified of their constitutional rights that they would be giving up by pleading guilty to the charges these rights included the right to a jury trial, their right to a speedy trial and their right to confrontation. The judge sentenced the defendant’s to a variety of sentences including fines, restitution, diversion programs, classes, county jail time, probation and state prison. The defendant’s that were in custody and were sentenced to jail time the judge would notify the defendant of his actual credits and his good time and give the defendant how many credits he/she had towards their sentence. If the defendant’s sentence included probation, the defendant had to agree to the terms and conditions of their probation and the judge reviewed the rights that they were giving up to be placed on probation, including the right to own a fire arm and the defendant’s search and seizure rights. In conclusion, I found my courtroom visit to be great learning  experience. More specifically after visiting the courthouse and seeing our criminal justice system firsthand, I feel that I have a greater understanding of the different topics we have been learning about in class including the different stages of the criminal court proceedings, the constitutional rights each person has when charged with committing a crime and the different people involved with the criminal courts.

Chemistry IA: Electrolysis of Metal Sulphate solutions Essay

Introduction Electrolysis is the chemical decomposition of a compound by applying an electric current through a solution containing ions. Electrolytes are required to conduct electricity. They must be dissolved in water or in molten state for the electrolytes to conduct because then, the ions are free to move allowing the solution to be electrolyzed.[1] In electrolysis, reduction happens at the cathode whilst oxidation happens at the anode. Reduction is the loss of electrons and oxidation is the gain of electrons. Research Question In this experiment, I will be electrolyzing nickel sulphate (NiSO4) solution. To further explain the aim of this experiment, I have formulated a research question: â€Å"How does changing the current affect the mass of nickel deposited at the cathode in the electrolysis of nickel sulphate?† Hypothesis I predict that as the electrical charge increases, the mass of nickel deposited at the cathode after electrolysis will also increase. Faraday’s law of electrolysis, which investigates the quantitative relationship on electrochemical, can support this. Faraday’s law states, â€Å"The amount of the substance produced by current at an electrode is directly proportional to the quantity of electricity used†.[2] During this electrolysis experiment, the aqueous solution of Nickel Sulphate will transfer Nickel from the anode to the cathode. Therefore indicating that the nickel sulphate solution is ionised by the electric current and dissociated into nickel ions and sulphate ions. This can be represented in a chemical equation: NiSO4 à ¯ Ni2+ + SO42- At the cathode, positively charged nickel ions are formed there and Ni2+ ions are reduced to Ni by gaining two electrons: Ni2+ + 2e à ¯ Ni At the anode, Ni is oxidised into Ni2+ by dissolving and going into the nickel sulphate solution and finally depositing nickel at the cathode: Ni à ¯ Ni2+ + 2e When the electrolysis circuit has electricity flowing, the nickel ions will float towards the electrode. Therefore, when the current is increased, the nickel ions flow faster and reaching the cathode faster. So there will be more nickel deposited as the rate of electrolysis is increased. Independent and Dependent Variables Variable measured Method of measuring variable Independent variable Magnitude of current flowing into the electrolytes (A) The 5 values I will use for current flowing into the electrolytes will be: 0.5 amps 1.0 amps 1.5 amps 2.0amps 2.5 amps To vary the values of current, a variable resistor will need to be used in the ciruit to control the flow of current. The amps values can be determined using an ammeter, which is also attached to the electrolysis circuit. Dependent variable Mass of Nickel (g) The mass of nickel deposited at the cathode after electrolysis will be measured for results. This will be determined by weighing the nickel electrodes before the experiment and after electrolysis. For this, a electronic balance will be used to weigh them. Controlled Variables Variable measured Method of measuring variable Controlled variables Temperature ( °C) The entire experiment will be done in room temperature of around 24 °C to ensure that the temperature for each trial will be the same. The temperature will be measured using a thermometer. Concentration of solution (moldm-3) The concentration of nickel sulphate needs to be kept constant at 1 moldm-3. This is because the same concentration will allow the number of ions in the solution to be the same, thus the number of collisions during the electrolysis will be kept the same. Volume of solution (cm3) The volume of nickel sulphate for each trial will be kept at 100cm3. Measuring cylinders will be used for accurate measurement. Time (min) The timing for the experiment needs to be controlled very carefully to ensure the amount of current passing the electrolytic cell will have the same amount of time. For each trial, it will run for 2 minutes. This will be determined using a stopwatch. Voltage (V) To keep the voltage of this experiment constant set at 5V, we only need to switch the power pack to 5V and keep it there. Distance between electrodes (mm) The distance between the nickel electrodes needs to be kept constant so it doesn’t affect the amount of current passing. The distance will be kept at 40mm and this will be measured using a ruler. Surface of electrodes Before using the electrodes in the experiment, sand paper will be used to remove the oxide layer on the sheet of nickel. This will ensure the surface of all electrodes to be the same and will have the same surface for ions to attach to. Size of electrodes The electrodes need to be kept the same size to ensure there will be an equal surface area for nickel to deposit on. The nickel sheet electrodes will be 10mm by 50mm long. This is measured using a ruler. Equipment Equipment such as measuring cylinders, power packs, wires will need to be the same. This is because different equipment would have different uncertainties, which may affect the final readings of the experiment. Equipment Thermometer NiSO4 solution Nickel electrodes 100ml beaker Resistor Power pack Ammeter Diagram Safety considerations Long hair needs to be tied back Appropriate footwear worn for laboratory experiments Safety goggles should be warn to prevent harmful chemicals from harming your eyes Don’t touch the electric terminals when the electricity is on to prevent shocks Reliable results To ensure accurate and reliable results, I will be undergoing 3 trials for each experiment. This is so I will then be able to calculate an average, thus my data will be more reliable. I will also maintain all the controlled variables and only varying the input of current. Method Set up the apparatus and circuit as shown in the diagram Fill a beaker with 100cm3 of nickel sulphate Weigh the cathode using the electronic balance and record the initial mass of it File the Nickel electrodes using sandpaper to remove any impurities Place each electrode pair into the beaker with nickel sulphate Attach the electrodes to opposite sites of the beaker (measure with a ruler the distance between, it should be around 4cm) by bending the electrodes it Adjust the current to 0.5 amps using the variable resistor Connect the electrolytes into the circuit by clipping on the wires and turn the power pack on Using the stopwatch, time for 2 minutes whilst looking at the ammeter to ensure the current remains the same After 2 minutes, turn the power pack off and take the cathode out. Wash the cathode carefully with distilled water and dry it with a paper towel Weigh the cathode again using the electronic balance and record the mass Repeat the steps 1 to 12 again for 1 amps, 1.5 amps, 2 amps and 2.5 amps Initial Mass of Cathode ( ±0.001g) Final Mass of Cathode ( ±0.001g) Change in mass ( ±0.001g) Average mass gained ( ±0.002 g) Data table The table above is a draft up of the raw data results table I will be using for my final readings from the experiment. It includes columns with headings, 3 trials, units and uncertainties and the average mass gained from the whole experiment. From these results, I can also draw a graph to easier represent the data and can also spot patterns or anomalous data that occur in the results. The actual theoretical mass of nickel deposited at the cathode can also be calculated with a few equations: Charge (C)= Current (A) x Time (s) Moles of electrons= Charge (C)/ 96500 Moles of Nickel= moles of electrons/2 Mass= moles x RAM The total percentage of random uncertainty can be calculated for my final answer in order to determine whether my experiment was fully successful and that the results are accurate. Wires Crocodile clips Stopwatch Sandpaper Ruler Electronic balance ________________ [1] Neuss, Geoffrey. IB Study Guide: Chemistry: Study Guide. [s.l.]: Oxford UP, 2007. Print. [2] â€Å"Faraday’s laws of electrolysis†. Encyclopà ¦dia Britannica. Encyclopà ¦dia Britannica Online. Encyclopà ¦dia Britannica Inc., 2012. Web. 04 Oct. 2012 .