Question:

A compound contains 92.3% carbon and 7.7% hydrogen by mass. ?

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a) In 100g of the compound, how many grams of carbon are there?

b) In 100g of the compound, how many many grams of hydrogen are there?

c) What is the empirical formula for this compound?

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  1. a) 92.3 g

    b) 7.7 g

    c)  Mole Ratio of Carbon : Hydrogen = 92.3 / 12 : 7.7 / 1

    = 7.7 : 7.7

    = 1 : 1  ----------- >  Empirical Formula is [ CH ] or CnHn .


  2. a) = 92.3g

    b) =7.7g
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