Silver oxide `(Ag_2O)` decomposes at temperature `300^@C` yielding matellic silver and oxygen gas. A `1.60g` sample of impure silver oxide yields `0.104g` of oxygen gas. What is the per cent by mass of the silver oxide in the sample ?

A 500 mL sample of a gas weighs 0.326 g at 100^(@)C and 0.500 atm. What is the molecular mass of the gas

A 1.50g sample of an ore containing silver was dissolved, and all of the Ag^(+) was converted to 0.124 g of Ag_(2)S . What was the percentage of silver in the ore?

100g of mercuric oxide is heated and decomposed to produce 7.4g of oxygen. What mass of mercury must be produced in the reaction?

20.0 g of magnesium carbonate sample decomposes on heating to give carbon dioxide and 8.0 g of magnesium oxide. What will be the percentage purity of magnesium carbonate in the sample?

20.0 g of a magnesium carbonate sample decomposes on heating to give carbon dioxide and 8.0 g magnesium oxide. What be the percentage purity of magnsesium carbonate in the sample?

Rate of diffucion of ozonized oxygen is 0.4sqrt5 times that of pure oxygen what is the per cent degreeof association of oxygen assuming pure O_(2) in the sample initially ?

IN the analysis of 0.5 g sample of feldspar, a mixture of chlorides of sodium and potassium is obtained which weighs 0.1180 g . Subsequent treatment of the mixed chlorides with silver nitrate gives 0.2451 g of silver chloride. What is the percentage of sodium oxide and potassium oxide in the sample ?