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mass percent C=mass C in cpdmolar mass of cpd×100
mass C in H2C2O4 = 2 x 12 g = 24 g
molar mass H2C2O4:
2 H x 1 g = 2 g
2 C x 12 g = 24 g
4 O x 16 g = 64 g
sum = 90 g
What is the mass percent of carbon in oxalic acid, H2C2O4?
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