Essays Tagged: "Electrolysis"

Aluminium.

British scientist named Humphry Davy, discovered a new unidentified element in clay. He tried using electrolysis to isolate the element, but he could only manage to create the white compound this elem ... gh the Bayer process. It is a strongly electropositive metal and is extremely reactive, which makes electrolysis necessary. Aluminum is the third most abundant element in the earth's crust following o ...

(5 pages) 55 0 2.0 Oct/2003

Subjects: Science Essays > Environmental Science

Magnesium.

of the periodic table.In 1808 Sir Humphrey Davy isolated Magnesium. Today it is obtained mainly by electrolysis of combined magnesium. Magnesium is flexible and malleable when heated. The metal can n ...

(2 pages) 33 0 2.2 Jan/2004

Subjects: Science Essays > Chemistry

Chemistry electrolysis coursework

.The experiment carried out aimed to monitor the quantity of Copper (Cu) metal deposited during the electrolysis of Copper Sulphate solution (CuSo4) using Copper electrodes, when certain variables wer ... ubling the charge. This statement can be supported by both of Faraday's Laws.Faraday's First Law of electrolysis states that:"The mass of any element deposited during electrolysis is directly proporti ...

(5 pages) 57 0 4.5 Jan/2004

Subjects: Science Essays > Chemistry

Describing the process of Electorlysis and how the number of coloumbs can verify the amount of current given off

Electrolysis*First LawThe quantity of a substance produced by electrolysis is proprotional to the qu ... 2.59 x 10-5) x 63.55 = 1.65 x 10-3 g = 1.65 mg*An EMF of 4.5 V produces 1 kg of sodium metal by the electrolysis of Na+.Calculate the minimum number of kilowatt-hours of electricity needed to produce ... produce the sodium metal.Calculate the moles of electrons, n(e), requiredWrite the equation for the electrolysis of Na+:Na+ + e -----> Na(s)moles of Na(s) = moles of electrons used n(e)n(e) = n(Na) ...

(3 pages) 30 1 5.0 Jan/2004

Subjects: Science Essays

Investigating the rate of electrolysis. An investigation to find out what factors affect the rate of electrolysis of a solution containing copper (II) ions.

Investigating the rate of electrolysis.An investigation to find out what factors affect the rate of electrolysis of a solution ... ent I will be carrying out is aimed to observe the amount of Copper (Cu) metal deposited during the electrolysis of Copper Sulphate solution (CuSo4) using Copper electrodes, when certain variables are ... the current is increased the mass of the anode will decrease.This is because of what happens during electrolysis. All electrolytes contain ions, which are both positively and negatively charged ions. ...

(11 pages) 65 1 2.6 Mar/2004

Subjects: Science Essays > Chemistry

Alternative Fuel

pace saving than in pure liquefied hydrogen, therefore larger storage tanks are needed to store it. Electrolysis is not usually the best way to generate hydrogen. Most of the today's hydrogen comes fr ... United States Alternative Fuels Data Center now, hydrogen is made using the following two methods. Electrolysis: Uses electrical energy to split water molecules into hydrogen and oxygen. Applying low ...

(10 pages) 282 1 4.2 Apr/2004

Subjects: Science Essays > Environmental Science

What Is Electrolysis

ElectrolysisIn archaeological conservation, a cleaning process, especially of material from underwat ... osive salts move slowly from the object (cathode) to the grille (anode), leaving the artefact clean.ElectrolysisIn chemistry, the production of chemical changes by passing an electric current through ... e negative electrode (cathode) and negative ions (anions) to the positive electrode (anode). During electrolysis, the ions react with the electrode, either receiving or giving up electrons. The result ...

(1 pages) 23 0 3.0 Jul/2004

Subjects: Science Essays > Physics

Reaction between HCl and Marble Chips

electrodes slowly reduces because of the numbers of ions 'swarming' towards it.Scientific Knowledge:ElectrolysisAll ionic compounds can be decomposed by using electricity by a process called electroly ... loric Acid hydrogen gas and chlorine gas2HCl(L) H2 + Cl2At the cathode:2H+ + 2e- H2At the anode:The electrolysis of solutionsIf a salt is dissolved in water (aqueous), the ions are free to move, and s ...

(3 pages) 59 4 3.3 Jan/2005

Subjects: Science Essays > Chemistry

Electrolysis.

ent I will be carrying out is aimed to observe the amount of Copper (Cu) metal deposited during the electrolysis of Copper Sulphate solution (CuSo4) using Copper electrodes, when certain variables of ... supply.6. Beaker - for holding copper sulphate solution.7. Copper sulphate solution - for doing the electrolysis experiment.8. Distilled water and Acetone - for cleaning and drying the electrodes usin ...

(13 pages) 40 1 3.0 Sep/2005

Subjects: Science Essays > Chemistry

"Warning: The Hydrogen Economy May Be More Distant Than It Appears" by Alexander Schmit.

on dioxide into the atmosphere. However, the procedure taken to release hydrogen from water through electrolysis, the process in which an electric current flowing through a water solution of a chemica ... too has its drawbacks.Critics may argue that renewable resources can be used to provide energy for electrolysis, but renewable resources cannot even begin to stand up to the demands hydrogen-making i ...

(2 pages) 16 0 4.0 Sep/2005

Subjects: Science Essays > Environmental Science

History of Chemistry: Sir Humphry Davy

cal current through some substances, these substances decomposed this process was eventually called electrolysis. In 1813, Sir Humphrey Davy concocted a giant battery in the basement of Britain's Roya ... ed in the Bakerian lecture, which is a prize lecture of the Royal Society on November 1807. Through electrolysis, Davy eventually discovered magnesium, calcium, strontium, and barium in 1808. However, ...

(3 pages) 16 0 3.0 Oct/2006

Subjects: Science Essays > Chemistry

Future of cars

wable which can be obtained through various means. A very likely future fuel is hydrogen. A reverse electrolysis system is used to convert water into the useful hydrogen. While hydrogen has dangerous ... e would be to use carbon-free resources like solar, wind, and hydropower to produce electricity for electrolysis, which splits water into hydrogen and oxygen. Hydrogen would make renewable energy prac ...

(3 pages) 92 3 2.9 May/2007

Subjects: Science Essays > Technology

I Had To Join

aste. The heat is used to make the mass a liquid. The steam from this mass is used to make hydrogen.Electrolysis is used to separate water into hydrogen and oxygen. It is done by using electrical curr ...

(2 pages) 4 0 0.0 Apr/2001

Subjects: Science Essays > Chemistry

Building a spacecraft to travel to Mars

ation System will be installed into the shuttle to provide oxygen to the crew members. The OGS uses electrolysis to separate water into breathable oxygen. This provides oxygen through the shuttle dail ...

(4 pages) 9 0 3.7 Sep/2007

Subjects: Science Essays > Physics

The application of Electrolysis?

Chemistry EssayName: Vineet BaldwaGrade: 10CQ. Write an essay on the application of Electrolysis?IntroductionBefore we go into the details of the application of electrolysis, we must f ... he details of the application of electrolysis, we must first understand very clearly the process of electrolysis and how it works.The word electrolysis has been derived from the two words "Electro" me ... s which means separation. So just be finding the root of the word, we can understand what it means. Electrolysis means the splitting of compounds using electricity.ElectrolysisElectrolysis is the spli ...

(6 pages) 12 0 0.0 Nov/2007

Subjects: Science Essays > Chemistry

Hydrogen Not an Alternative Fuel Source

arth, it must be ripped out of molecules to get it by itself. In order to do this, a process called electrolysis is used to separate hydrogen atoms from water molecules (H2O). This process requires se ... hydrogen. Although it can be up to 20% more efficient to use methane (CH4) in place of water in the electrolysis process, methane is a finite resource that is in even shorter supply than crude oil.To ...

(5 pages) 23 0 0.0 Feb/2008

Subjects: Science Essays

EXTRACTION AND RECYCLING OF METALS CHEMISTRY NOTES

e crushed, treated chemically to extract aluminum oxide, then dissolved in molten cryolite and then electrolysis must be carried out.c) Magnesium is less abundant than aluminium and is also more activ ... ium is less abundant than aluminium and is also more active. Therefore, more energy must be used in electrolysis of magnesium thus increasing costs.Ability to recycle the metalMetal ores are non-renew ...

(4 pages) 16 1 0.0 Nov/2008

Subjects: Science Essays > Chemistry

Investigating a factor that affects the volume of H2 at the cathode in an electrolysis reaction

IntroductionAn electrolysis cell uses an external source of voltage to bring about a non-spontaneous redox reaction ... ectricity is passed through an electrolyte and electrical energy is converted into chemical energy. Electrolysis enables neutral elements to be released from ionic compounds by discharging the ions th ... ow from anode to cathode.AimInvestigate a factor that affects the volume of H2 at the cathode in an electrolysis reaction.HypothesisI think that the voltage will be one factor that will affect the vol ...

(2 pages) 985 0 2.0 Jan/2010

Subjects: Science Essays > Chemistry

HYDROGEN CARS

that it is very abundant. Hydrogen is one of the atoms that make up water, and in a process called electrolysis, can be extracted by sending electricity through water. When using pure hydrogen as a f ...

(4 pages) 16 0 0.0 Nov/2010

Subjects: Businesss Research Papers > Management

electrolysis of aluminum

Electrolysis in chemistry is the movement of an electric current through an ionic substance that is ... of an electric current through an ionic substance that is either molten or dissolved. The result of electrolysis is chemical reactions at the electrodes and separation of material as well.Electrolysis ... lectrolyte solution. It is important that the ions can move, because if the ions are unable to move electrolysis cannot happen because the electric current cannot pass through solid salts.A D.C curren ...

(10 pages) 3 0 0.0 May/2014

Subjects: Science Essays