Question

at stp, how many moles of h₂ gas are contained within a 112 l container?

Explanation:

Step1: Recall STP molar volume

At STP (Standard Temperature and Pressure, 0°C and 1 atm), 1 mole of any ideal gas occupies 22.4 L. So the molar volume \( V_m = 22.4\ \text{L/mol} \).

Step2: Use moles formula

The formula to find moles (\( n \)) from volume (\( V \)) and molar volume (\( V_m \)) is \( n=\frac{V}{V_m} \). Given \( V = 112\ \text{L} \) and \( V_m = 22.4\ \text{L/mol} \), substitute the values: \( n=\frac{112\ \text{L}}{22.4\ \text{L/mol}} \).

Step3: Calculate the result

\( \frac{112}{22.4}=5 \), so the number of moles is 5.

Answer:

5 moles