Easy Chemistry Class 11 Level 8

How many moles of H2O are present in 18 g of water?

18 g पानी में कितने मोल H2O होते हैं?

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Correct Answer

B. 1 mol

Explanation

Step 1: This is a molar mass calculation question. Step 2: The molar mass of H2O is 18 g mol^-1, so 18 g contains 1 mol H2O. Step 3: Exam tip: remember molar mass of water as 18.

Step 1: यह molar mass calculation का प्रश्न है। Step 2: H2O का molar mass 18 g mol^-1 है इसलिए 18 g में 1 mol H2O होगा। Step 3: परीक्षा टिप: water का molar mass 18 जल्दी याद रखें।

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