ICSE Class 10 Chemistry 2018 Solved Paper

Question : 55 of 80

Marks: +1, -0

The percentage composition of a gas is : Nitrogen

82.35 \%

, Hydrogen

17.64 \%

Find the empirical formula of the gas.

[N=14, H=1]

Solution:

\table {\N},,{\H}; 82.35 ,, 17.64 ; 82.35 \/ 14,,17.64 \/ 1; =5.88,,=17.64; .88 \/ 5.88,,17.64 \/ 5.88; =1,,=3

Empirical formula

={\NH}_3

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