A 781g sample of hcn contains 0289g of h and 405g of n
A 7.81g sample of HCN contains 0.289g of H and 4.05g of N. Find the mass of carbon in a sample of HCN with a mass of 3.68g .
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a 781g sample of hcn contains 0289g of h and 405g of n find the mass of carbon in a sample of hcn with a mass of 368g
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