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Calculate the number of moles in 42 grams of NaHCO3?(a) 0.5(b) 1(c) 1.5(d) 2I have been asked this question in a national level competition.This question is from The Mole in chapter Moles, Density & Concentration of Basic Chemical Engineering |
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Answer» CORRECT choice is (a) 0.5 For explanation: Molecular weight of NAHCO3 = 84 grams, => number of moles = 42/84 = 0.5. |
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