Advertisements
Advertisements
प्रश्न
Calculate the percentage composition of calcium chloride.
[Ca = 40, Cl = 35.5]
Advertisements
उत्तर
Percentage composition of calcium chloride [CaCl2]
Molecular mass of CaCl2 = Ca + 2[Cl]
= 40 + 2[35.5]
= 40 + 71
= 111
% of Ca = `"Mass of calcium"/"Molecular mass" xx 100`
`=40/111 xx 100`
= 36.04%
% of chlorine = `"Mass of Cl"_2/"Molecular mass of CaCl"_2 xx 100`
`= 71/111 xx 100`
= 63.96%
Or % of Cl2 = 100 - 36.04 = 63.96%
APPEARS IN
संबंधित प्रश्न
Calculate the percentage of phosphorus in calcium hydrogen phosphate Ca(H2PO4)2 .
Calculate the percentage of phosphorus in calcium phosphate Ca3(PO4)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)
Give three kinds of information conveyed by the formula H2O.
Calculate the percentage of phosphorus in Calcium phosphate Ca3(PO4)2
Some of the fertilizers are sodium nitrate NaNO3, ammonium sulphate (NH4)2SO4 and urea CO(NH2)2. Which of these contains the highest percentage of nitrogen?
Calculate the percentage composition of calcium nitrate.
[Ca = 40 N = 14, O = 16]
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 ______.
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]
