WS 04 - Key - 2 (g) b ___Cr(s) + ___H 2 O(g) Type:...

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Name: _____________________________ Quiz Section:_______ CHEM 120A – Autumn 2011 Worksheet #4 1. If you had a mole of U.S. dollar bills and equally distributed the money to all the people of the world, how rich would every person be? Assume a world population of 6 billion. rson dollars/pe 10 100 people 000 6,000,000, 1 x mole dollars 10 022 . 6 12 23 x x = OR 100 trillion dollars per person 2. Balance the following equations and identify the type of reaction: ___AgNO 3 (aq) + ___H 2 SO 4 (aq) b ___Ag 2 SO 4 (s) + ___HNO 3 (aq) Type: _______________ ___Al(s) + ___Cl 2 (g) b ___AlCl 3 (s) Type: _______________ ___NI 3 (s) b ___N 2 (g) + ___I 2 (g) Type: _______________ ___Cr 2 O 3 (s) + ___H
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Unformatted text preview: 2 (g) b ___Cr(s) + ___H 2 O(g) Type: _______________ 3. In the following reactions, identify which reactant is oxidized and which is reduced and write the correct half reaction for each: a. Cl 2 (g) + 2KI(aq) b 2KCl(aq) + I 2 (g) b. Fe(s) + CuSO 4 (aq) b FeSO 4 (aq) + Cu(s) 4. Ascorbic acid, or vitamin C (C 6 H 8 O 6 ), is an essential vitamin. What is the molar mass of ascorbic acid? One can take a vitamin C tablet that contains 500.0 mg of vitamin C as a dietary supplement. How many moles of vitamin C are contained in one tablet? How many molecules of vitamin C does one tablet contain?...
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