Mole Concept and Some Basic Concepts of ChemistryhardMCQ SINGLE

Based on the concept of equivalent volume, what is the exact volume occupied by exactly of Oxygen gaMole Concept and Some Basic Concepts of Chemistry Chemistry Question

Question

Based on the concept of equivalent volume, what is the exact volume occupied by exactly $1\text{ gram equivalent}$ of Oxygen gas ($O_2$) at Standard Temperature and Pressure (STP)?

Answer: C

💡 Solution & Explanation

Step 1: Understand the definition of gram equivalent volume. It is the volume occupied by one equivalent weight of a gas at STP. Step 2: Determine the equivalent weight of Oxygen. The equivalent weight of atomic oxygen is $8\text{ g}$. Step 3: Relate mass to volume at STP. We know that $1\text{ mole}$ of $O_2$ gas ($32\text{ g}$) occupies exactly $22.4\text{ L}$ at STP. Step 4: Calculate the volume for $8\text{ g}$. Volume = $\left(\frac{22.4\text{ L}}{32\text{ g}}\right) \times 8\text{ g} = 5.6\text{ L}$.

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