Find empirical formula of the compound if M=68%
(atomic mass=34) and remaining 32% oxygen.

Determine the empirical formula of a compound containing K=24.75%, Mn =34.77% and rest is oxygen.

Determine the empirical formula of the compound whose composition by mass is : 42% nitrogen, 48% oxygen and 9% hydrogen. (H = 1, N = 14, O = 16)

Find the empirical formula of a compound containing 62.5% lead , 8.5% nitrogen and 29% oxygen

A compound is composed of 2.2% hydrogen, 26.6% carbon and 71.2% oxygen. Calculate the empirical formula of the compound. If its molecular mass is 90, find its molecular formula.

Find the empirical formula of a compound containing 9.76% magnesium , 13.01%sulphur and 26.01% oxygen

Find the empirical formula of a compound containing 17.7% hydrogen and 82.3% nitrogen.

Determine the empirical formula of a compound containing Nitrogen = 87.5% and Hydrogen = 12.5%. If the molecular mass is 32. Find its molecular formula.