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ratio of masses of \mathrm{O_{2}} and \mathrm{N_{2}} in a gaseous mixture is 1:4 , ratio of number of their molecules is ________

Option: 1

3:16


Option: 2

1:4


Option: 3

7:32


Option: 4

1:8


Answers (1)

best_answer

\mathrm{\frac{\omega_{\mathrm{O}_2}}{\omega_{\mathrm{N}_2}}=\frac{1}{4}}

\mathrm{\frac{n_{O_2} \times M_{\mathrm{O}_2}}{n_{\mathrm{N}_2} \times \mathrm{MN}_2}=\frac{1}{4}}

er, \mathrm{\frac{n_{\mathrm{O}_2}}{n_{\mathrm{N}_2}}=\frac{1}{4} \times \frac{28}{32}=\frac{7}{32}}

Posted by

Pankaj

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