When a container have 16 g of Helium and 96 g oxygen at standard temperature and pressure find the volume of container in .
At STP, 1 mole occupy 22.4 litre
So 7 mole occupy = litre
litre
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50 mL of 0.2 M ammonia solution is treated with 25 mL of 0.2 M HCl. If pKb of ammonia solution is 4.75, the pH of the mixture will be : Option: 1 3.75 Option: 2 4.75
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