Mass of one mole of chlorine gas is?
Correct answer: B. 71 g
- A. 32 g
- B. 71 g
- C. 35.5 g
- D. 46 g
Explanation
Relative atomic mass of Cl= 35.5 amuThe relative molecular mass of Cl2 gas= 71 amuMolecular mass expressed in grams is called mole. Hence, 1 mole of Cl2 gas= 71 g.So, option b is correct.
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Mole calculations connect mass, number of particles and Avogadro's number, while balanced equations provide the mole ratios used in stoichiometry. Questions cover limiting and excess reactants, theoretical yield and percentage yield, including identifying which reactant is consumed first and comparing the actual product with the maximum possible product.
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