Calculate the mass fractions of hydrogen, sulfur and oxygen in sulfurous acid H2SO3.

univerkov | September 18, 2021 | education

Given:
H2SO3
W (H) -?
W (S) -?
W (O) -?
Solution:
Mr (H2SO3) = 2 + 32 * 3.16 = 82
W (H) = 2 \ 62 = 20%
W (S) = 32 \ 82 = 39%
W (O) = 3 * 16 \ 82 = 58%
Answer: 20%; 39%; 58%

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