Advertisements
Advertisements
प्रश्न
Calculate the percentage composition of calcium nitrate [Ca = 40 , Cl = 35.5 , N = 14 , O = 16]
Advertisements
उत्तर
Calcium nitrate Ca[NO3]
Molecular mass of Ca[NO3]2 = Ca + 2[N2 + 3(O)]
= 40 + 2[14 + 3 × 16]
= 40 + 2[14 + 48]
= 40 + 124
= 164
% of Ca = `40/164 xx 100 = 24.9`
% of N = `28/164 xx 100 = 17.07`
% of O = `96/164 xx 100 = 58.54`
APPEARS IN
संबंधित प्रश्न
Calculate the percentage of phosphorus in calcium phosphate Ca3(PO4)2.
Give three kinds of information conveyed by the formula H2O.
Find the percentage of water of crystallisation in CuSO4.5H2O. (At. Mass Cu = 64, H = 1, O = 16, S = 32)
Calculate the percentage of phosphorus in Calcium phosphate Ca3(PO4)2
Find the percentage of phosphorus in the fertilizer superphosphate Ca(H2PO4)2.
Calculate the percentage of sodium in sodium aluminium fluoride (Na3AlF6) correct to the nearest whole number. (F = 19; Na = 23; Al = 27)
Calculate the percentage composition of calcium chloride.
State the term for the following:
The formula which represents the simplest ratio between the atoms of elements present in a compound.
Find the total percentage of Magnesium in magnesium nitrate crystals, Mg(NO3)2.6H2O.
[Mg = 24, N = 14, O = 16 and H = 1]
A compound X contains 32% of A, 20% of B and remaining percentage of C. Then, the empirical formula of X is ______.
(Given atomic masses of A = 64; B = 40; C = 32
