Caffeine has a molecular mass of 224. If it contains 12.5% by mass of nitrogen, then the number of toms of mitrogen in one molecule of caffeine is

Caffeine has a molecular mass of 224. If it contains 12.5% by mass of

1.	Caffeine has a molecular mass of 224. If it contains 12.5% by mass of nitrogen, then the number of toms of mitrogen in one molecule of caffeine is
Answer» 2 atoms are presentExplanation:224*12.5/100.= 28gMeans in CAFFEINE 28 G nitrogen is PRESENT. MOLECULAR mass of N2 is 28 means it CONTAINS 2 atoms of nitrogen. Hence in 28g of N2 contains 2 atoms of nitrogen.