A compound contains `92.3%` of carbon and `7.7%` of hydrogen. The moleculer of the compound is 39 times heavier than hydrogen molecule. The molecular formula of the compound is

A compound contains 92.3% of carbon and 7.7% of hydrogen. The molecule of the compound is 39 times heavier than hydrogen molecule. The molecular formula of the compound is

A carbon compound contains 12.8% of carbon, 2.1% of hydrogen and 85.1% of bromince. The molecular weight of the compound is 187.9 . Calculatte the molecular formula of the compound. (Atomic weight of H +1.008, C = 12.0 and Br = 79. 9))

A Gaseous compound of Nitrogen and Hydrogen conains 12.5% by weight of Hydrogen. The density of the compound relative to Dydrogen is 16, the molecular formula of the compound is

A compound has 20% of nitrogen by weight. If one molecule of the compound contains two nitrogen atoms, the molecular weight of the compound is