100 mL of 0.1 M Na2SO4 is mixed with 100 mL of 0.2 M NaCl solution. Molarity of Na+ ion in final solution. If final solution has density 1.2 g/mL.

Engineering

Chemistry

Dilution and Mixing of Solution

Solution Stoichiometry

Question

100 mL of 0.1 M Na₂SO₄ is mixed with 100 mL of 0.2 M NaCl solution. Molarity of Na⁺ ion in final solution. If final solution has density 1.2 g/mL.

0.1

0.8

0.15

0.2

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Mol. of Na⁺ = 100 × 0.1 × 2 = 0.02 [from Na₂SO₄]
Mol. of Na⁺= 100 × 0.2 = 0.02 [from NaCl]
Total mol of Na⁺ = 0.04 mol