Chem 162 electrochemistry - Study guides, Class notes & Summaries

Oxidation e- as product e- are lost h+ are lost same as ionic charges ANODE Reduction e- as reactant e- are gained h+ are gained CATHODE special oxidation numbers H = -1 (metal hydrogens) O = -1 (peroxide) voltaic (galvanic) cell spontaneous Electrolytic cell nonspontaneous Ex: Electroplating Cell Notation Electrode | Electrolyte || Electrolyte | Electrode When will the cell stop? Cell will stop if cell potential of anode + cathod...

Chem 162 Experiment #2: Electrochemistry complete solution

Chem 162 chapter 005 – Electrochemistry Complete Solution 2023/2024 Entropy (delta S) correct answers Molecular randomness; positive when removing constraints (spontaneous) and negative when adding them (non randomness); state function Gibbs free energy (delta G) correct answers Allows the prediction of whether a reaction is spontaneous; negative if reaction occurs (spontaneous) and positive if precipitate occurs (non spontaneous) Reaction quotient (Q) correct answers Tells whether a ...

Chemistry 162 Chapter 018 – Electrochemistry Complete Solution 2023/2024 electricity from chemistry correct answers many chemical reactions involve the transfer of electrons between atoms or ions -electron transfer reactions --all single displacement and combustion reactions --some synthesis and decomposition reactions the flow of electrons is associated with electricity --fuel cell oxidation-reduction correct answers reactions in which electrons are transferred from one atom to ano...

Chemistry 162 Chapter 003 – Electrochemistry Complete Solution 2023/2024 Verified Created; Destroyed correct answers First Law of Thermodynamics: Energy cannot be _________ or __________. system; surroundings correct answers For an exothermic reaction, "lost" heat from the _________ goes into the _____________. heat, q; work, w correct answers two ways energy "lost" from a system, converted to _____,___ used to do _______,___ q + w; ΔH + PΔV; state function correct answers...

Chemistry 162 Chapter 015 – Electrochemistry Complete Q & A 2023/2024 Q<1, right, Ecell>E∘cell correct answers When a redox reaction within a voltaic cell occurs under conditions in which _______, the greater concentration of reactants relative to products drives the reaction to the_______, resulting in ______. Q>1, left, Ecell<E∘cell correct answers When a redox reaction within an electrochemical cell occurs under conditions in which_____, the greater concentration of pr...

Chemistry 162 Chapter 002 – Electrochemistry Complete Q & A 2023/2024 A solution with a pH of 4.0 is: correct answersAcidic For a voltaic cell, Ecell is negative correct answersFalse One Faraday is equal to: correct answersOne equivalent weight KOH is considered a strong acid correct answersFalse A solution has a pH of 4.0 When aid is added to the solution, its pH stays constant at 4.0 This solution is a: correct answersBuffer

Chemistry 162 Chapter 019 – Electrochemistry Complete Solution 2023/2024 Voltaic cell= galvanic cell=_________ correct answers "Battery" Galvanic/voltaic cell: A device that converts the chemical energy released in a __________________ chemical reaction into electrical energy correct answers spontaneous In a voltaic cell, oxidation occurs at the _____ correct answers anode In a voltaic cell, reduction occurs at the ____________ correct answers chathode What is the purpose of a...