Mole Concept and Some Basic Concepts of ChemistryeasyMCQ SINGLE

Number of molecules in 100 mL of each of , and at STP are : [1]Mole Concept and Some Basic Concepts of Chemistry Chemistry Question

Question

Number of molecules in 100 mL of each of $O_2$, $NH_3$ and $CO_2$ at STP are : [1]

Answer: C

💡 Solution & Explanation

According to Avogadro's hypothesis, equal volumes of all gases under the same conditions of temperature and pressure (STP) contain the same number of molecules. Since the volume is 100 mL for each, they all have the same number of molecules. [1]

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