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 nitrogen and oxygen in ammonium nitrate. [Relative molecular mass of ammonium nitrate is 80, H = 1, N = 14, O = 16].
Calculate the percentage of phosphorus in calcium phosphate Ca3(PO4)2.
Calculate the percentage composition of each element in Potassium chlorate KCIO3.
Find the empirical formula of the compounds with the following percentage composition:
Pb = 62.5%, N = 8.5%, O = 29.0%
An acid of phosphorus has the following percentage composition; Phosphorus = 38.27%; hydrogen = 2.47%; oxygen = 59.26%. Find the empirical formula of the acid and its molecular formula, given that its relative molecular mass is 162.
Find the percentage of oxygen in magnesium nitrate crystals [Mg(NO3).6H2O].
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)
60 g of a compound on analysis gave 24 g C, 4 g H and 32 g O. The empirical formula of the compound is ______.
Empirical formula of Ethyne.
