Advertisements
Advertisements
Question
Find the percentage of nitrogen in ammonia.
Solution
Ammonia – NH3 = Molar mass = 14 + 3 = 17
Mass % of Nitrogen = `14/17×100` = 82.35%.
APPEARS IN
RELATED QUESTIONS
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 .
Find the empirical formula of the compounds with the following percentage composition:
Pb = 62.5%, N = 8.5%, O = 29.0%
Find the percentage of boron in Na2B4O7.10H2O. [H = 1, B = 11, O = 16, Na = 23].
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.
Calculate the percentage composition of calcium nitrate [Ca = 40 , Cl = 35.5 , 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 ______.
Empirical formula of Ethyne.
Find the total percentage of Magnesium in magnesium nitrate crystals, Mg(NO3)2.6H2O.
[Mg = 24, N = 14, O = 16 and H = 1]