2009.10.14

2009.10.14 - 2 O after adding 0.50 g NaCl and 0.90g...

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What is the empirical formula for the caffeine shown below: http://www.scarletline.com/npcml/img/caffeine_ball_stick.png A) C 5 H 4 N 2 O B) C 4 H 5 NO 2 C) C 4 H 5 NO D) C 8 H 10 N 4 O 2 E) C 4 H 5 N 2 O
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What is the concentration of Cl - in 100 mL H
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Unformatted text preview: 2 O after adding 0.50 g NaCl and 0.90g KCl? (Hint: molar mass NaCl = 58.44 g/mol molar mass KCl = 74.55 g/mol) A) 0.21 M B) 2.1 M C) 0.021 M D) 0.23 M E) 0.023 M...
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This note was uploaded on 04/29/2010 for the course CHEM CHEM 6A taught by Professor Czarkowski during the Spring '07 term at UCSD.

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2009.10.14 - 2 O after adding 0.50 g NaCl and 0.90g...

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