Advertisements
Advertisements
प्रश्न
Calculate the percentage of nitrogen in aluminium nitride. [Al = 27, N = 14]
Advertisements
उत्तर
Molecular mass of aluminium nitride (AIN3) = 27 + 14 x 3 = 69
Now, 69 parts by weight of aluminium nitride contains = 42 parts by weight of nitrogen
So, 100 parts will contain = 42 x 100 / 69 = 60.86‰
Hence, the percentage of nitrogen in aluminium nitride is 60.86‰
APPEARS IN
संबंधित प्रश्न
Calculate the relative molecular mass of Potassium chlorate.
(use K = 39, Cl = 35.5, O = 16, C = 12, H = 1, Na = 23, N = 14, S=32)
Calculate the relative molecular mass of Sodium acetate
(use K = 39, Cl = 35.5, O = 16, C = 12, H = 1, Na = 23, N = 14, S= 32)
The usefulness of a fertilizer depends upon percentage of nitrogen present in it. Find which of the following is a better fertilizer:
(a) Ammonium nitrate [NH4NO3]
(b) Ammonium phosphate [(NH4)3PO4 (N=14,H=1,O=16,P=31)
Find the total percentage of oxygen in magnesium nitrate crystal Mg(NO3)2.6H2O.
[H = 1, N = 14, O = 16, Mg = 24]
A metal M, forms a volatile chloride containing 65.5% Chlorine. If the density of the chloride relative to hydrogen is 162.5, find the molecular formula of the chloride. [M = 56, Cl = 35.5]
Complete the following calculations. Show working for complete credit :
If the empirical formula of a compound is CH and it has a vapour density of 13, find the molecular formula of the compound.
Calculate the relative molecular mass of:
Ammonium chloroplatinate (NH4)2 PtCl6
Calculate the relative molecular mass of:
Potassium chlorate
Calculate the relative molecular mass of:
CH3COONa
Calculate the volume occupied at S.T.P. by 2 moles of SO2.
