Question

6.the number of mole of nitrogen in one litre of air containing 10% nitrogen by volume,under standard conditions is

Answer 1

Answer: The volume of nitrogen in the mixture is:

10% of the mixture  =   10/100 x 1 liter

                               =    0.1 liters

Use ideal gas law to calculate the moles of the nitrogen gas.

Ideal gas law states that 1 mole of an ideal gas occupies 22.4 liters by volume.

Therefore, If 22.4 liters gives 1 mole,

                 then what will 0.1 mole give?  =  ( 0.1 x1/22.4) liters.

                              (use cross multiplication to come up with the answer)

 

                                             = 0.1/22.4

                                             

                                             = 4.46 x 10^-3

Explanation: HOPE IT HELPS YOU

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Answer 2

$\sf\large\green{\underline {question... }}$

• The number of mole of nitrogen in one litre of air containing 10% nitrogen by volume,under standard conditions is?

$\sf\large\green{\underline { to \: find... }}$

• Mole of Nitrogen.

$\sf\large\green{\underline { solution...}}$

22.4 L contains 1 mole of Nitrogen...

• 10% of 1L = 0.1 L

We hav to find number of moles in 0.1 L of nitrogen.

22.4 L ➡ 1 mol

0.1 L ➡ x moles.

$\frac{1}{22.4} \times 0.1 \\ \\ = \frac{1}{224} \\ \\ = 0 .0044 \\ \\ \sf\large\red{\underline {4.4 \times {10}^{ - 3} moles }}$

$\sf\large\purple{ mark \: as \: brainliest.....}$