Chemistry
Grade-9
Easy
Question
What is the molecular mass of sucrose?
- 340 amu
- 342 amu
- 304amu
- 320 amu
Hint:
The chemical formula of sucrose is C12H22O11.
The correct answer is: 342 amu
Sucrose, a disaccharide, is a sugar composed of glucose and fructose subunits. The chemical formula of sucrose is C12H22O11
Molecular mass of sucrose = (12
12 + 22 1 + 1116) = (144+22+176) = 342 amu
Atomic mass of carbon, hydrogen and oxygen are 12, 1 and 16 respectively.
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