Chemistry
A gas cylinder contains 12 x 1024 molecules of oxygen gas.
Calculate : the mass of O2 present in the cylinder.
(ii) the volume of O2 at S.T.P. present in the cylinder.
[O = 16] Avog. no. is 6 × 1023
Related Questions
Select the correct answer from A, B, C and D : The ratio between the number of molecules in 2 g of hydrogen and 32 g of oxygen is:
(A) 1 : 2
(B) 1 : 0.01
(C) 1 : 1
(D) 0.01 : 1
[H = 1, O = 16]
A gas of mass 32 gms has a volume of 20 litres at S.T.P. Calculate the gram mol. weight of the gas.
Calculate the number of gram atoms in 4.6 grams of sodium [Na = 23]
The mass of 11.2 litres of a certain gas at s.t.p. is 24 g. Find the gram molecular mass of the gas.