Question

in ammonia, nitrogen and hydrogen are alwayas presetn in ratio-14:3.so in a solution of ammonia there is 9 g of hydrogen than find the mass of nitrogen

Answer 1

For every 3 grams of hydrogen there are 14 grams of nitrogen as per the ratio. Which means for 1 gram hydrogen, there is 14/3 gram of nitrogen. So, for 9 gram of hydrogen, there is 14/3*9=42 grams of nitrogen.