How much heat is needed to vaporize 39.6 mL of liquid hydrogen cyanide, HCN, at 25.0C? The
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How much heat is needed to vaporize 39.6 mL of liquid hydrogen cyanide, HCN, at 25.0°C? The density of the liquid is 0.687 g/mL. Use standard heats of formation, which are given in Appendix C.
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