Calculate the number of moles of a gas that occupy 7.3 × 10³ mL at STP. The value of R = 0.0821 L atm mol^-1 K^-1.

Question

Quizplus · Accepted Answer

At STP (Standard Temperature and Pressure), 1 mole of any ideal gas occupies 22.4 liters (or 22,400 mL). To find the number of moles, divide the volume of the gas by the volume occupied by 1 mole of gas at STP. $ \frac{7.3 \times 10^{3} \text{ mL}}{22,400 \text{ mL/mol}} = 0.33 \text{ mol} $.

Calculate the Number of Moles of a Gas That Occupy