0.2 mol of HCI and 0.1 mol of barium chloride is dissolved in water to produce a 500 mL solution. The molarity of Cl⊝ is
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a
0.06 M
b
0.12 M
c
0.09 M
d
0.80 M
answer is D.
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Detailed Solution
0.02 mol HCl = 0.02 of H⊕+0.2 mol of Cl⊝ 0.01 mol BaCl2=0.1 mol of Ba2++0.1×2 mol of Cl⊝ Total Cl⊝=0.4 mol Total volume = 500 mL = 12L ∴Cl⊝=0.41/2=0.8M