The percentage by mole of `NO_(2)(g)` and NO(g) having average molecular mass 34 is :

The percentage by mole of NO_(2) in a mixture of NO_(2) (g) and NO(g) having average molecular mass 34 is

In a polymer sample 30% molecules have a molecular mass 20,000 , 40% have molecular mass 30,000 and rest have 60,000 .The number average molecular mass is x times10^(4) then x is

A sample of mixture of A(g), B (g) and C(g) under equilibrium has mean molecular mass equal to 80. The equilibrium is : A(g)hArr B(g)+C(g) If initially 4 mole of 'A' gas is present then total number of mole at equilibrium is : [M_(A)=100,M_(B)=60,M_(C)=40]

A sample of mixture of A(g), B (g) and C(g) under equilibrium has mean molecular mass equal to 80. The equilibrium is : A(g)hArr B(g)+C(g) If initially 4 mole of 'A' gas is present then total number of mole at equilibrium is : [M_(A)=100,M_(B)=60,M_(C)=40]

A mixture contain 3.2g methanol (molecular mass =32 u) and 4.6 g ethanol (molecular mass =46 u) Find the mole fraction of each component.

Veriy by calculating that a) 5 moles of CO_(2) and 5 moles of H_(2)O do not have the same mass. b) 240 g of calcium and 240 g magnesium elements have a mole ratio of 3:5

Veriy by calculating that a) 5 moles of CO_(2) and 5 moles of H_(2)O do not have the same mass. b) 240 g of calcium and 240 g magnesium elements have a mole ratio of 3:5