A welding fuel gas contains carbon and hydrogen only. Burning a small sample of it in oxygen gives 3.38 g carbon dioxide, 0.690g of water and no other products. A volume of 10.0L (measured at STP) of this welding gas is found to weigh 11.8 g. Calculate
molecular formula

A welding fuel gas contains carbon and hydrogen only. Burning a small sample of it in oxygen gives 3.38 g carbon dioxide, 0.690g of water and no other products. A volume of 10.0L (measured at STP) of this welding gas is found to weigh 11.6 g. Calculate empiracle formula

A welding fuel gas contains carbon and hydrogen only. Burning a small sample of it in oxygen gives 3.38 g carbon dioxide, 0.690g of water and no other products. A volume of 10.0L (measured at STP) of this welding gas is found to weigh 11.7 g. Calculate molar mass of the gas

20.2 g of a magnesium carbonate sample decomposes on heating to give carbon dioxide and 8.0 g magnesium oxide. What will be the percentage purity of magnesium carbonate in the sample? (At wt Mg=24 )

Carbohydrates are compounds containing only carbon, hydrogen and oxygen. When heated in the absence of air, these compounds decompose to form carbon and water. If 310 g of a carbohydrate leave a residue of 124 g of carbon on heating in absence of air, what is the empirical formula of the carbohydrate?

A sample of pure PCI_5 was introduced into an evacuated vessel at 473 K.After equilibrium was attained,concentration of PCI_5 was found to be 0.5 xx 10 ^(-1) mol L^(-1) . If value of K_c is 8.0 xx 10^(-3) ,f what are the concentrations of PCI_3 and CI_2 at equilibrium? PCI_5(g) hArr PCI _3(g) +CI_2(g) .

A sample of pure PCI_5 was introduced into an evacuated vessel at 473 K.After equilibrium was attained,concentration of PCI_5 was found to be 0.5 xx 10 ^(-1) mol L^(-1) . If value of K_c is 8.0 xx 10^(-3) ,f what are the concentrations of PCI_3 and CI_2 at equilibrium? PCI_5(g) hArr PCI _3(g) +CI_2(g) .