Chemistry (13th Edition)
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; To balance the chemical equation start with ... more
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6 ; The chemical equation is a balanced redox ... more
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4 ; To balance the chemical equation start with ... more
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; By separating the oxidation and reduction ... more
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; From the cell diagram the oxidation and ... more
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Sn can not reduce Zn2+ due to more negative ... more
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; Cd electrode having lower negative electrode ... more
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and ; We know the standard electrode potential of ... more
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; From the cell diagram, derive both half-cell ... more
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; Derive half-cell reactions and find their ... more
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; First write the half cell reaction for the ... more
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; First split the complete reaction into the half... more
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; First write the half cell reaction for the ... more
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The measurement of the equilibrium constant ... more
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yes ; First write the half cell reaction for the ... more
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; First write the half cell reaction for the ... more
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; The given cell is an example of a concentration... more
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6 ; Since the voltage produced by a dry cell is 1.... more
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Ni ; Ni behaves as the oxidised element and shows ... more
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; Hydrogen ions & water should take place to ... more
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; Redox reaction: ; At anode: At cathode... more
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; In an electro chemical cell, reduction takes ... more
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Anode: Cathode: ; An electrochemical cell produce ... more
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; We know, where Q is the electricity in culoumb... more
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Anode: An electrode in a galvanic cell at which ... more
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Galvanic cell produces electrical energy from ... more
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Function of salt bridge is to prevent the halt of ... more
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A cell diagram illustrates the Galvanic cell setup... more
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Every redox reaction has a reduction half and an ... more
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emf: The potential difference between the ... more
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; Faraday's constant is the charge of one mole of... more
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For standard electrochemical cell, the ... more
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; Identify cathode and anode by the standard ... more
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; Identify cathode and anode by the standard ... more
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Yes ; To predict the oxidizing capacity, check the... more
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Cl2(g) and MnO4-(aq) ; Standard reduction ... more
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No ; Higher positive value of standard reduction ... more
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(a) (b) (c) (d) in acid medium ; The species ... more
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(a): (b): (c): (d): ; The species which will have ... more
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; Identify the reduction and oxidation halves ... more
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; Identify the reduction and oxidation halves ... more
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; Where, ; more
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The cell reaction has a positive value. ; For a ... more
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; To evaluate , identify the half cell reactions ... more
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; According to the balanced reaction, .It is ... more
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will oxidise to form and . ; According to the ... more
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; To evaluate , identify the half cell reactions... more
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; Gibbs free energy equation when all the ... more
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; In a Daniel Cell, copper ions are reduced and ... more
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; To evaluate , substitute the standard reduction... more
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; To calculate the standard reduction potential ... more
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Less than ; To calculate the standard reduction ... more
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; To evaluate , substitute the standard reduction... more
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The chemical reaction involved in a primary ... more
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Advantages; Higher efficiency in terms of output ... more
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; The number of moles of electrons exchanged in ... more
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Prevention from rusting ; The thin layer of ... more
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Both function as a protective layer against ... more
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The arrangement forms an electrochemical cell with... more
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The tendency of steel to get corroded increases ... more
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In an electrolytic cell, electrical energy is ... more
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; Reaction at anode and cathode is determined by ... more
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; According to the half cell reaction, calculate ... more
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; According to the half cell reactions, 2 and 3... more
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; For each mole of , four moles of electrons need... more
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; To calculate the number of moles of electrons, ... more
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; Calculate the number of moles of cobalt atoms ... more
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; The production rate in one hour refers to the ... more
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; The thickness of chromium plating in ... more
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; First law of electrolysis states that the ... more
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; Calculate the total electric charge by using ... more
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; Write the half cell reactions and calculate the... more
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; The Boyle's law states that at constant ... more
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; Calculate the total charge when a current of 10... more
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Anode: Cathode: ; Write the half-cell reaction for... more
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; Write the half-cell reaction for the cathode ... more
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The is ; Find the concentration of in solution ... more
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; The unbalanced equation is It is the redox ... more
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; Calculate the number of moles of using the ... more
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; Write the balanced equation for the given ... more
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E Cell Reaction >... more
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; Start with writing the complete and balanced ... more
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; Since the reduction potential of is more than ... more
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The oxidation potential of fluorine is higher than... more
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; Write the half-cell reaction for the cathode ... more
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; Write the general expression for Faraday’s ... more
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The production of ions at the cathode and at the... more
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Mercury (I) will exist as in its aqueous solution... more
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On the electrolyzation of the aqueous solution of ... more
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Magnesium left= ; Write the half-cell reactions ... more
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Construct a galvanic cell by dipping a copper rod ... more
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; Electrochemical equivalent (Z), can be defined... more
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3 ; The oxidation state of is 1 in most of the ... more
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To avoid damages to the car batteries. ; In cold ... more
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; Cathode and anode half cell reactions can be ... more
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Irrespective of the material of the electrode, if ... more
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; The electrochemical cell involves the ... more
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; The reaction occurred at cathode (reduction) is... more
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4 ; Assume that the charge on each mole of ... more
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; Determine the standard electrode potential of ... more
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; To convert the volume of to the number of ... more
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Cell potentials above 1.5 to 2.5 V are shown by ... more
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; An electrolytic cell is comprised of two half ... more
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; The standard reduction potential of the cell .... more
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; First, write both the reactions, then subtract ... more
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Yes ; The standard reduction potential is the ... more
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No ; The gastric juice in the human body produces ... more
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; The balanced half-reactions for the oxidation ... more
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The anode is the electrode wherein the oxidation ... more
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for the reaction, which reflects the spontaneity ... more
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Stronger oxidising agent ; The oxidizing potential... more
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Advantages: No start up problem, much quieter, no ... more
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; At anode, oxidation occurs while at cathode, ... more
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will oxidize .The first test tube is , and the ... more
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The result is consistent with the value given in ... more
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; The overall balanced reaction is .Write the ... more
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Hydrogen-Oxygen fuel cell converts the chemical ... more
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At , At , Therefore standard emf of the cell ... more
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The cost of electricity is . ; The surface area of... more
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; Standard reduction potential of a cell is ... more
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; The standard electrode potential is defined as ... more
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; Calculate the of the reaction. ; ; Next ... more
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a) The half cell reactions are:At anode:At cathode... more
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; The half cell reactions for the fluorine-... more
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increases with an increase in temperature. ; For ... more
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By changing the temperature, emf can be generated ... more
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; Energy produced by one mole of octane is ... more
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; Assume that the weight of the spoon is .As per ... more
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3 ; , Slope can be calculated as : . .Using a ... more
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Electrolysis cannot take place with ac because in ... more
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At anode, dark reddish brown fumes of bromine are ... more
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At anode: At cathode: ; In an ... more
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Sulfate compound of aluminum is detected.It is ... more
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a) By checking the electrodes used in precipitator... more