Question

Glucose has a gram molecular mass of:

• A. $180.096u$
• B. $180.096g$
• C. $18.0096u$
• D. $18.0096g$

Answer 1

The correct option is B $180.096g$

The calculation is as follows:

Six atoms of carbon: $6x12.01g=72.06g$

Twelve atoms of hydrogen: $12x1.008g=12.096g$

Six atoms of oxygen: $6x16.00g=96.00g$

So the molar mass of $C_6{H}_{12}{O}_6$ is $72.06g+12.096g+96.00g=180.096g$

The gram molecular mass of glucose is $180.096g$