The mass in grams of 0.45 mole of CO2 ions ……(a) 1.8 (b) 40 (c) – InterviewSolution

1.

The mass in grams of 0.45 mole of CO2 ions ……(a) 1.8 (b) 40 (c) 36 (d) 18

Answer»

(d) 18

Ca = Atomic mass = 40

Ca → Ca²⁺ + 2e^-

41 g of Ca = 1 mole (for Ca²⁺ Atomic mass remains same)

1 mole of Ca²⁺ = 40 g

∴ 0.45 mole of Ca²⁺ = 40/(1 x 0.45) = 18g

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