The dye in blue jeans has a percent composition, by mass, of 73.27%C, 3.84%H, 10.68%N and the remainder oxygen. The molecular mass is 252.3 g/mol. What is the empirical and molecular formula of this compound.
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Indigo, the dye for blue jeans, has a percent composition, by mass, of $73.27 \%$ C $, 3.84 \%$ H, $10.68 \%$ N, and the remainder is oxygen. The molecular mass of indigo is 262.3 u. What is the molecular formula of indigo?
2. Indigo, the dye of jeans, contains 73.27% C, 3.84% H, 10.68% N and oxygen by mass. Find the rough formula and molecular formula of this compound with a molecular mass of 262 g. (C: 12, H: 1, O: 16, N: 14 g / mol)
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A major textile dye manufacturer developed a new yellow dye. The dye has a percent composition of $75.95 \%$ C, $17.72 \%$ N, and $6.33 \%$ H by mass with a molar mass of about $240 \mathrm{g} / \mathrm{mol}$. Determine the molecular formula of the dye.
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