Question

Alcohol mass before burning: 80.6g
Alcohol mass after burning: 75.9g
Water heated: 100g
Methanol Mr: 32
Initial temperature of water: 21.5 C
Final temperature of water: 32.4 C

Calculate the number of moles of methanol burned.
Alcohol burned = 80.6 - 75.9 = 4.7 g
mols alcohol = grams/molar mass = ?

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