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Stoichiometry and Chemical Analysis (Section) A 1.248-g

Chemistry: The Central Science | 13th Edition | ISBN: 9780321910417 | Authors: Theodore E. Brown; H. Eugene LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward; Matthew E. Stoltzfus ISBN: 9780321910417 77

Solution for problem 90E Chapter 4

Chemistry: The Central Science | 13th Edition

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Chemistry: The Central Science | 13th Edition | ISBN: 9780321910417 | Authors: Theodore E. Brown; H. Eugene LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward; Matthew E. Stoltzfus

Chemistry: The Central Science | 13th Edition

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Problem 90E

        

Stoichiometry and Chemical Analysis (Section)  A 1.248-g sample of limestone rock is pulverized and then treated with 30.00 ml of 1.035 M HCI solution. The excess acid then requires 11.56 ml of 1.010 MNaOH for neutralization. Calculate the percentage by mass of calcium carbonate in the rock, assuming that it is the only substance reacting with the HCI solution.

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Chemical processes involve energy transformation. Chemical systems can thus be used to store energy or to transform it into usable forms How do we apply chemical concepts, ideas, and ways of thinking to control these energy transformations: Amount, rate, and type of energy production Reversibility Nature of the products Energy released in exothermic chemical reactions results form charge redistribution among reacting atoms In these processes, electrons move from states of higher or lower potential energy If we want to control the amount and rate of energy released, we need to control charge redistribution Charge redistribution - When electrons move from regions of higher potential energy to regions of lower potential energy The

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Chapter 4, Problem 90E is Solved
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Textbook: Chemistry: The Central Science
Edition: 13
Author: Theodore E. Brown; H. Eugene LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward; Matthew E. Stoltzfus
ISBN: 9780321910417

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Stoichiometry and Chemical Analysis (Section) A 1.248-g