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Solved: Consider the unbalanced redox reaction: Balance

Chemistry: A Molecular Approach | 3rd Edition | ISBN: 9780321809247 | Authors: Nivaldo J. Tro ISBN: 9780321809247 1

Solution for problem 104E Chapter 18

Chemistry: A Molecular Approach | 3rd Edition

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Chemistry: A Molecular Approach | 3rd Edition | ISBN: 9780321809247 | Authors: Nivaldo J. Tro

Chemistry: A Molecular Approach | 3rd Edition

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Problem 104E

Consider the unbalanced redox reaction:

Balance the equation and determine the volume of a 0.850 M K2Cr2O7 solution required to completely react with 5.25 g of Cu.

Step-by-Step Solution:
Step 1 of 3

Chemistry Chapter 3 Notes 1) Chemical reactions: reactants  products a) Reactants: the species that is being consumed in the reaction b) Products: the species that is being formed in the reaction c) When writing the reaction for a combustion the products are always CO2 and H20 2) Balancing chemical reactions a) Law conservation of mass: matter cannot be created or destroyed i) Each species needs to be balanced on either side of reaction b) Balance elements other than H and O first in the reaction c) Aqueous solution: solution in which water is the solvent i) Water is the medium in which a reaction occurs. It is neither the reactant nor the product 3) Limiting reactant a) Limiting reactant: the reactant that is used up first in the reaction b) Excess reactant: the reactant that is left over when the reaction has happened 4) Percent yield a) Theoretical yield: how much you should get of a substance when the reaction has happened b) Actual yield: how much you get of a substance when an experiment is conducted c) Percent yield: actual/ theoretical x 100 = percent yield 5) Properties of solutions a) Solution: homogenous mixture of two or more substances b) Solvent: component with the greatest amount in a solution c) Solute: dissolves the solvent, usually smaller 6) Electrolytes a) Electrolyte: substance that can generate ions b) Non-electrolyte: cannot generate ions i) Strong electrolyte completely breaks apart (1)Conducts electricity (2)Water soluble

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Chapter 18, Problem 104E is Solved
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Textbook: Chemistry: A Molecular Approach
Edition: 3
Author: Nivaldo J. Tro
ISBN: 9780321809247

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Solved: Consider the unbalanced redox reaction: Balance