Molecular Mass
Trending Questions
Q. Differentiate between molecular mass and formula unit mass.
[2 Marks]
[NCERT]
[2 Marks]
[NCERT]
Q.
Molecular mass of ammonia is
Q. ___
What is the mass of 4.82 x 1025 molecules of H2O in grams?
Q. What is the molecular mass of the compound SO2?
- 64 u
- 48 u
- 32 u
- 16 u
Q.
What is the mass percentage of hydrogen in the H2O molecule?
5.55%
33.33%
22.22%
11.11%
Q.
The mass ratio of hydrogen to oxygen in water is :
1:8
8:1
2:3
3:2
Q.
The mass of a molecule of water is
- 3×10−26kg
- 3×10−25kg
- 1.5×10−26kg
- 2.5×10−26kg
Q. Which of the following is correct with respect to the mass ratio of the combining elements in the compound - C2H5OH?
- Ratio of C:H:O is 8:3:12
- Ratio of C:H:O is 2:6:1
- Ratio of C:H:O is 6:2:1
- Ratio of C:H:O is 12:3:8
Q. Calculate the molar mass of Calcium Hydroxide.
- 65 g/mol
- 84 g/mol
- 74 g/mol
- 100 g/mol