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\( NH _{3} \) के \( 100 g \) में उसके अणुओं की संख्या ज्ञात कीजिए। |
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Answer» Molecular weight at NH3 = 17 g/mol ∴ Number of moles of NH3 in 100 g = 100/17 mol = 5.9 mol As we know, 1 mole of any molecule contains = 6.022 x 1023 = molecules. ∴ Number of NH3 molecule in 5.9 mole NH3 = 5.9 x 6.022 x 1023 = 35.53 x 1023 = 3.55 x 1024 NH3 molecule. Hence, 100g NH3 contains 3.55 x 1024 molecule of NH3. |
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