Advertisements
Advertisements
Question
Calculate the molecular mass of the following:
(NH₄)₂SO₄
[At mass : C = 12, H = 1, O = 16, Ci = 35.5, N = 14, Cu = 63.5, S = 32, K = 39, Pt = 195, Ca = 40, P = 31, Mg = 24]
Advertisements
Solution
(NH₄)₂SO₄ = 2(14 + 4 × 1) + 32 + 4 × 16
= 2 × 18 + 32 + 64
= 36 + 96
= 132
APPEARS IN
RELATED QUESTIONS
Calculate the molecular mass of CO2.
What is meant by saying that ‘the molecular mass of oxygen is 32’ ?
Calculate the molecular masses of the following :
Carbon dioxide, CO2
(Atomic masses : H = 1 u ; O = 16 u ; Cl = 35.5 u ; N = 14 u ; C = 12 u)
Which of the following elements has the same molecular mass as its atomic mass ?
Urea [CO(NH2)2] is an important nitrogenous fertilizer. Urea is sold in 50 kg sacks. What mass of nitrogen is in one sack of urea?
The gram molecular mass of oxygen molecule is ______.
Molar mass of CO2 is 42g.
Write the formulae for the following and calculate the molecular mass for each one of them.
- Caustic potash
- Baking powder
- Limestone
- Caustic soda
- Ethanol
- Common salt
Write the name of the following compound and deduce its molecular mass.
MgCl2
A gas occupied 360 cm3 at 87°C and 380 mm Hg pressure. If the mass of gas is 0.546 g, find its relative molecular mass.
