We have prepared acetylene, C2H2 (g), in class by the reaction of calcium carbide with water:
CaC2(s) + 2 H2O(l) → Ca(OH)2 (s) + C2H2(g)
Calculate the volume of C2H2 that is collected over water at 28.0°C by the reaction of 1.60 g CaC 2 (MM = 64.10g/mol) if the total pressure was 748.0 mmHg. The vapor pressure of water at 28.0°C is 28.3 mmHg.
a) 0.651 L
b) 0.424 L
c) 0.384 L
d) 4.57 L
e) 8.03 L
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