What is the empirical formula of a compound that is 79.8% carbon and 20.2% hydrogen?
Answer (3)
The empirical formula of the compound containing 79.8% carbon and 20.2% hydrogen is CH₃
Data obtained from the question
Carbon = 79.8%
Hydrogen= 20.2%
Empirical formula =?
How to determine the empirical formula
Divide by their molar mass
C = 79.8 / 12 = 6.65
H = 20.2 / 1 = 20.2
Divide by the smallest
C = 6.65 / 6.65 = 1
H = 20.2 / 6.65 = 3
Thus, the empirical formula of the compound is CH₃
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The empirical formula for a compound that is 79.8% carbon and 20.2% hydrogen is CH3. This is determined by converting the percentage composition to a molar quantity, then creating a ratio from these molar quantities, and reducing this ratio to its simplest form. ;
The empirical formula of the compound with 79.8% carbon and 20.2% hydrogen is CH₃, calculated by converting the percentages into grams, then into moles, and finally finding the simplest whole number ratio of the elements.
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