Advertisements
Advertisements
प्रश्न
Calculate the percentage of phosphorus in calcium hydrogen phosphate Ca(H2PO4)2 .
Advertisements
उत्तर
Molar mass of Ca(H2PO4)2 is 2346/mole
Atomic mass of phosphorus is 31g
So percentage of phosphorus = `("atomic mass" xx 2)/("molar mass") xx 100`
= `(31 xx 2)/234 xx 100`
= `26.50%`
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 composition of each element in Potassium chlorate KCIO3.
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)
Calculate the percentage of phosphorus in Calcium phosphate Ca3(PO4)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.
Calculate the percentage composition of calcium nitrate [Ca = 40 , Cl = 35.5 , N = 14 , O = 16]
State the term for the following:
The formula which represents the simplest ratio between the atoms of elements present in a compound.
Empirical formula of Ethyne.
