
Concept explainers
• APPLY 9.8 Instant hot packs and cold packs contain a solid salt in a capsule that is broken and dissolved in water to produce a temperature change. Which of the following salts would result in greatest decrease in temperature when dissolved in 100,0 mL of water in a cold pack? Use the following thermochemical data to answer the question.
(a) 10.0 g of LiF
(b) 10.0 g of BaSO4
(c) 10.0 g of LiCl
(d) 10.0 g of CaCl2
• Instant cold packs are used to treat athletic injuries.

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Chapter 9 Solutions
Chemistry (7th Edition)
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