how many moles of cl2 are in a container with a volume of 7.5 l at stp?
how many moles of cl2 are in a container with a volume of 7.5 l at stp?
Answer
Explanation:
Step1: Recall molar - volume at STP
At STP (Standard Temperature and Pressure, 0°C or 273 K and 1 atm), the molar volume of any ideal gas is $V_m = 22.4\ L/mol$.
Step2: Use the formula for number of moles
The formula to calculate the number of moles $n$ of a gas given its volume $V$ and molar volume $V_m$ is $n=\frac{V}{V_m}$. We know that $V = 7.5\ L$ and $V_m=22.4\ L/mol$. $n=\frac{7.5\ L}{22.4\ L/mol}$ $n\approx0.335\ mol$
Answer:
$0.335\ mol$