The number of moles of gas occupying a volume of exactly measured at STP conditions is . Find the ex — Mole Concept and Some Basic Concepts of Chemistry Chemistry Question
Question
The number of moles of $H_2$ gas occupying a volume of exactly $0.224\text{ L}$ measured at STP conditions is $x \times 10^{-2}$. Find the exact integer value of $x$.
Answer: 1
💡 Solution & Explanation
Step 1: Apply the molar volume relationship at STP. Moles of gas ($n$) = $\frac{\text{Given Volume at STP}}{\text{Molar Volume at STP (22.4 L/mol)}}$. Step 2: Calculate moles. $n = \frac{0.224\text{ L}}{22.4\text{ L/mol}} = 0.01\text{ moles}$. Step 3: Format the answer. $0.01 = 1 \times 10^{-2}$. Therefore, the integer coefficient $x$ is 1.
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