Which has the larger percent by mass of oxygen, H2SO3 or H2S2O8?
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Answer:
H2S2O8
Explanation:
% by mass = { individual mass / total mass } × 100
Therefore,
in H2SO3 : % mass of O = { 16×3/82 } × 100 = 58.5
in H2S2O8 : % mass of O = { 16×8/162 } × 100 = 79
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