Advertisements
Advertisements
प्रश्न
Calculate the percentage of phosphorus in calcium phosphate Ca3(PO4)2.
Advertisements
उत्तर
Molar mass of calcium phosphate = 310.17 g/mole
Atomic mass of phosphorus (P) = 31 g
% of Phosphorus = `[(2 xx 31)/(310.17)] xx 100`
= 19.98 %
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 hydrogen phosphate Ca(H2PO4)2 .
Urea is a very important nitrogenous fertilizer. Its formula is CON2H4. Calculate the percentage of carbon in urea. (C = 12, O = 16, N = 14 and H = 1)
Find the percentage of water of crystallisation in CuSO4.5H2O. (At. Mass Cu = 64, H = 1, O = 16, S = 32)
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 boron in Na2B4O7.10H2O. [H = 1, B = 11, O = 16, Na = 23].
Find the percentage of phosphorus in the fertilizer superphosphate Ca(H2PO4)2.
10 g of a mixture of sodium chloride and anhydrous sodium sulphate is dissolved in water. An excess of barium chloride solution is added and 6.99 g of barium sulphate is precipitated according to the equation given below:
\[\ce{Na2SO4 + BaCl2 -> BaSO4 + 2NaCl}\]
Calculate the percentage of sodium sulphate in the original mixture.
Calculate the percentage composition of calcium chloride.
