Question

How many moles of nitrogen will be present in 2.24l of nitrogen gas at stp?

Answer 1

22.4L nitrogen is 1 mole at STP .
2.24L nitrogen is 0.1 mole at STP.

Answer 2

STP stands for Standard Temperature and Pressure.

STP refers to nominal conditions in the atmosphere at sea leval.

2.24L nitrogen is 0.1 mole at STP.

2.24 l of nitrogen gas is occupied by the one mole of gas.

The volume occupied by any number of moles of an ideal gas can be easily derived from knowing that 1 mole occupies 22.4 L.

The molecular weight of nitrogen is 28 g /mole and there are $6.023 * 10^{23}$ molecules present.

To find the number of moles at STP ,

Number of moles = Molar volume at STP litres /Volume itp litres.

Therefore ,0.1 moles of nitrogen will be present in 2.24l of nitrogen gas at stp

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