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W0lf93
STP stands for standard temperature and pressure. At STP, the volume of 1 mole of any gas is 22.4. This means that for 19.87 moles of ammonium chloride gas at STP, the volume is equal to 22.4 x 19.87. The volume is 445.088.

Answer : The volume of ammonium chloride at STP is, 445.088 L

Solution : Given,

Moles of ammonium chloride = 19.87 mole

As we know that at STP,

1 mole contains 22.4 L volume of gas

As, 1 mole of ammonium chloride contains 22.4 L volume

So, 19.87 moles of ammonium chloride contains [tex]22.4\times 19.87=445.088L[/tex] volume

Therefore, the volume of ammonium chloride at STP is, 445.088 L

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