# Problem: Determine the chemical formula of each of the following compounds and then use it to calculate the mass percent composition of each constituent element.sulfurous acid

###### FREE Expert Solution

sulfurous acid:

sulfurous → change "-ous to "-ite" → sulfite ion → SO32-

acid → add H+

2 H+ + SO32- → H2SO3

sulfurous acid: H2SO3

molar mass H = 1.01 g/mol

molar mass S = 32.06 g/mol

molar mass O = 16.00 g/mol

molar mass H2SO3 = (1.01 g/mol x 2) + 32.06 g/mol + (16.00 g/mol x 3)

molar mass H2SO3 = 82.08 g/mol

Mass percent of H:

total mass H = 1.01 g/mol x 2

total mass H = 2.02 g/mol

98% (123 ratings) ###### Problem Details

Determine the chemical formula of each of the following compounds and then use it to calculate the mass percent composition of each constituent element.

sulfurous acid

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