Advertisements
Advertisements
Question
Calculate the molecular masses of the following :
Oxygen, O2
(Atomic masses : H = 1 u ; O = 16 u ; Cl = 35.5 u ; N = 14 u ; C = 12 u)
Advertisements
Solution
Given:
Atomic mass of O = 16 u
Therefore, molecular mass of O2 can be calculated as follows:
16 × 2 = 32
Hence, molecular mass of O2 is 32 u.
APPEARS IN
RELATED QUESTIONS
Calculate the molecular mass of H2.
Calculate the formula unit mass of K2CO3 given the atomic mass of
- Zn = 65 u
- Na = 23 u
- K = 39 u
- C = 12 u
- O = 16 u
Calculate the molecular mass of hydrogen bromide (HBr). (Atomic masses : H = 1 u ; Br = 80 u)
Which of the following elements has the same molecular mass as its atomic mass ?
A gas cylinder of capacity of 20 dm3 is filled with gas X the mass of which is 10 g. When the same cylinder is filled with hydrogen gas at the same temperature and pressure the mass of the hydrogen is 2 g, hence the relative molecular mass of the gas is ______.
An unknown gas shows a density of 3 g per litre at 273°C and 1140 mm Hg pressure. What is the gram molecular mass of this gas?
Calculate the weight/mass of an atom of hydrogen.
Calculate the weight/mass of: `10^22` atoms of carbon
The modem atomic mass scale is based on ______.
Write the name of the following compound and deduce its molecular mass.
NaHCO3
