7.5g of gas occupies 5.6 litres at STP, the gas is

Answers (1)

At STP, 
5.6 litres is occupied by 7.5g of a gas
Then, 
22.4 litres is occupied by
(22.4 x 7.5)/5.6 = 30 g of that gas 

So, the molecular weight of the gas = 30g

The molecular weight of NO (Nitric oxide) is also 30g.

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