Question

calculeted the empirucal and molecular firmula ofa combound contaning 76.

Answer 1

We work of 100 g of compound and calculate the number of moles of each element

moles of C = 40 / 12 = 3.33 moles

moles of H = 6.67 /1 = 6.67

moles of O = 53.33 / 16 = 3.33 moles

molar ratio of C : H : O = 3.33 : 6.67 : 3.33 = 2 : 2 : 1

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