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Answers for Page 57

​1.
(a) 18.02 g/mol
(b) 44.01g/mol
(c) 58.44 g/mol
(d) 342.34 g/mol
(e) 252.10 g/mol
2.
(a) 4 significant digits
(b) 2 significant digits
(c) 2 significant digits
(d) 3 significant digits
(e) 1 significant digit
(f) 4 significant digits
3.
(a) 0.117 mol
(b) 24 g
(c) 50.0 mmol
(d)12.49 g
4.
(a) 1.72 x 10E3 g or 1.72 kg
(b) 50.0 L
(c) 1.55 mol/L
(d) 13.6 mL
(e) 2%
(f) 3.94 kJ
5.
(a) 0.907 mol
(b) 8.56 mol
(c) 29.21 mol
(d) 1.80 mmol
(e) 2.45 mol
6.
(a) 71.9 g
(b) 8.96 g
(c) 1.03 g
(d) 1.49 Mg
(e) 0.10 kg
7.
(a) 2.02 g, 70.90 g, 92.92 g
(b) 64.10 g, 96.00 g, 88.02 g, 72.08 g
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