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Hydrogen peroxide is used as a cleaning agent in the treatment of cuts and abrasions for

Introductory Chemistry: A Foundation | 7th Edition | ISBN: 9781439049402 | Authors: Steven S. Zumdahl, Donald J. DeCoste ISBN: 9781439049402 426

Solution for problem 57 Chapter 9

Introductory Chemistry: A Foundation | 7th Edition

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Introductory Chemistry: A Foundation | 7th Edition | ISBN: 9781439049402 | Authors: Steven S. Zumdahl, Donald J. DeCoste

Introductory Chemistry: A Foundation | 7th Edition

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Problem 57

Hydrogen peroxide is used as a cleaning agent in the treatment of cuts and abrasions for several reasons. It is an oxidizing agent that can directly kill many microorganisms; it decomposes upon contact with blood, releasing elemental oxygen gas (which inhibits the growth of anaerobic microorganisms); and it foams upon contact with blood, which provides a cleansing action. In the laboratory, small quantities of hydrogen peroxide can be prepared by the action of an acid on an alkaline earth metal peroxide, such as barium peroxide. BaO2(s) _ 2HCl(aq) S H2O2(aq) _ BaCl2(aq) What amount of hydrogen peroxide should result when 1.50 g of barium peroxide is treated with 25.0 mL of hydrochloric acid solution containing 0.0272 g of HCl per mL?

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Chapter 11 Notes ❖ When a molecule is charged, it is very polar ➢ Charged = extremely polar ❖ The larger the molecule, the stronger the london forces Entropy (S): The amount of randomness in a system ❖ Spontaneous processes ➢ Are favored by a decrease in H, or ​enthalpy​ (negative ΔH) ➢ Are favored by an increase in S, e ​ ntropy​ (positive ΔS) ➢ Between​ solids​, l​ iquids​, and ​gas​ olids​ have the ​least entropy​ (molecules are more tightly packed together) → ​liquids​ ​have ​more entropy than solids (molecules are more spread out and move random) → ​gases​ have the ​most entropy​ (molecules move more randomly than liquids) ❖ Non-spontaneous processes are the opposite of spo

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Chapter 9, Problem 57 is Solved
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Textbook: Introductory Chemistry: A Foundation
Edition: 7
Author: Steven S. Zumdahl, Donald J. DeCoste
ISBN: 9781439049402

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Hydrogen peroxide is used as a cleaning agent in the treatment of cuts and abrasions for