What is the empirical formula of a molecule containing 65.5% carbon 5.5% hydrogen and 29% oxygen?

The empirical formula is  

Explanation:

If percentage are given then we are taking total mass is 100 grams.

So, the mass of each element is equal to the percentage given.

Mass of C = 65.5 g

Mass of H = 5.5 g

Mass of O = 29.0 g

Step 1 : convert given masses into moles.

Moles of C =

Moles of H =

Moles of O =

Step 2 : For the mole ratio, divide each value of moles by the smallest number of moles calculated.

For C =

For H =

For O =

The ratio of C : H  : O= 3: 3: 1

Hence the empirical formula is  

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explanation:

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explanation: