Question

What volume do 3.00 moles of gas particles occupy at STP? A. 11.2 L B. 22.4 L C. 44.8 L D. 67.2 L

Answer 1

The volume that 3 moles of gas particles occupy is 67.2 L (option D)

Step-by-step explanation:

The STP conditions refer to the standard temperature and pressure. Pressure values at 1 atmosphere and temperature at 0 ° C are used and are reference values for gases. And in these conditions 1 mole of any gas occupies an approximate volume of 22.4 liters.

Then it is possible to apply a rule of three as follows: if according to STP 1 mole is available in 22.4 L, 3 moles in how much volume is it?

`volume=(3 moles*22.4 liters)/(1 mole)`

volume=67.2 L

The volume that 3 moles of gas particles occupy is 67.2 L (option D)

Answer 2

The molar volume is the volume occupied by 1 mol of any gas at STP.

The molar volume is 22.4 L

The volume occupied by 1.00 mol is 22.4 L

Therefore the volume occupied by 3.00 mol is - 22.4 L x 3 = 67.2 L

The answer is that 3.00 mol of gas particles occupy a volume of -

D. 67.2 L