a sample of an unknown compound is decomposed and found to contain 3.47 g n and 0.75 g h . what is the empirical formula of the compound?

Respuesta :

The empirical formula of the compound is NH2.

To determine this, we first need to convert the masses of nitrogen and hydrogen into moles. This can be done by dividing each mass by the molar mass of nitrogen (14.007g/mol) and hydrogen (1.008g/mol), respectively. This gives us 0.2476 moles of nitrogen and 0.7458 moles of hydrogen. To find the empirical formula, we divide each mole value by the smallest mole value, which in this case is 0.2476. This gives us a ratio of 1:3 for nitrogen and hydrogen, respectively. This can be simplified to NH2, which is the empirical formula for the compound.

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