Question

A 30.5 gram sample of glucose (C6H12O6) contains _______ mol of glucose?

A. 0.136
B. 5.90
C. 0.424
D. 0.169
E. 2.36

Answer 1

A 30.5 gram sample of glucose contains 0.169 mol of glucose.

Step-by-step explanation:

To find the number of moles of glucose in a 30.5 gram sample, we need to use the molar mass of glucose. The molar mass of glucose (C6H12O6) is calculated by adding up the atomic masses of the atoms in the molecule. Carbon (C) has a molar mass of 12.01 g/mol, hydrogen (H) has a molar mass of 1.01 g/mol, and oxygen (O) has a molar mass of 16.00 g/mol. Therefore, the molar mass of glucose is 6(12.01) + 12(1.01) + 6(16.00) = 180.16 g/mol.