`O_(2)` and `N_(2)` were present in a mixture in ratio of 1:7 by weight. Calculate the ratio of their number of gram molecules.

A gaseous mixture contains oxygen and nitrogen in the ratio 1:4 by weight. The ratio of their number of molecules is

A mixture contains O_(2) and N_(2) in the proportion of 1:4 by weight. What will be the ratio of the number of molecules of O_(2) and N_(2) in the mixture?

A gaseous mixture contains oxygen and nitrogen in the ratio of 1:4 by weight. Therefore, the ratio of their number of molecules is

A gaseous mixture contains oxygen and nitrogen in the ratio of 1 : 4 by weight therefore the ratio of their number of molecules is

A gaseous mixture contains oxygen and nitrogen in the ration of 1:4 by weight therefore, the ratio of their number of molecules is :

A gases mixture contains oxygen and nitrogen in the ratio 1 : 4 by weight. Therefore, the ratio of the number of molecules is:

Calculate the number of molecules in 8 grams of O_(2) .