Which of the following has the maximum number of molecules?
4g of Hydrogen
112L of He at STP
200g of CaCO3
33.6L of NH3 at STP
As we learnt
Number of Moles of a gas at STP -
no of moles of a gas at STP= given volume of gas / 22.4 liter
-
No of moles in each:
4g of H = = 2moles
112L He = = 5 moles
200 g of CaCO3 = = 2 moles
33.6L Of NH3 = = 1.5 moles
Option 1)
4g of Hydrogen
This is incorrect.
Option 2)
112L of He at STP
This is correct.
Option 3)
200g of CaCO3
This is incorrect.
Option 4)
33.6L of NH3 at STP
This is incorrect.
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