Question

1st attempt Jul See Periodic Table See Hint Oxygen forms a number of compounds with nitrogen, many of which are quite reactive. One such compound is 36.86 % by mass N. Calculate the number of grams of oxygen present in a sample of this compound that contains 58.00 grams of N. 80

Answer 1

Here is the solution of your question. If you have any doubt or need any clarification please comment in comment box and will definitely resolve your query. Thanks in advance.

36-86 % by mass N means - 36.86 gm is present in 100gm of compound, so if 58 gm N is present then mass of compound 3686 = 58 * 100 gm 36.86 = 157.35 Go mass of compound = 157-35gm mass of N-atom = 58:00 gm mass of o-aton = 99-35 gm