Question

The sugar ribose consists of 40.00 % C, 6.714 % H, and 53.29 % O. What is its empirical formula? Its molecular mass is 150.1 g/mol. What is its molecular formula?

Answer 1

EF CH2O MF C5H10O2

Step-by-step explanation:

C40/12H6.7/1 O53.29/16 = C3.33H6.7O3.33

Divide by 3.33 C1H2O1 empirical mass = 30g/mol

Mol mass 150.1 g/mol 5 times more

multiply empirical formula by 5