Organic Chemistry Answers

Calculate the entropy change at 25°C for the following reaction:

Li (s) + 0.5 O2 (g) + 0.5 H2 (g) → LiOH (s).

The entropy contents of the reactants and product at 25°C are as follows:

Substance S, J/mol•K

Li (s) 29.12

O2 (g) 205.138

H2 (g) 130.68

LiOH (s) 42.8

The average molar mass of a mixture of methane and ethane is equal to 30 g / mol. The mass of methane in the mixture is 64 g. Determine the amount of ethane in this mixture.

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