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InterviewSolution
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Upon mixing equal volumes of aqueous solutions of 0.1 M HCl and 0.2 M H2SO4, the concentration of H+ in the resulting solution is(a) 0.30 mol/L(b) 0.25 mol/L(c) 0.15 mol/L(d) 0.10 mol/L |
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Answer» Answer is : (b) 0.25 mol/L Let the volume of HCl and H2SO4 be V [No. of moles = Molarity x Basicity x Volume] Moles of H+ ions in HCl = 0.1 x 1 x V = 0.1 V Moles of H+ ions in H2SO4 = 0.2 x 2 x V = 0.4 V Thus, resulting moles of H+ ions in solution = (0.1+0.4) V = 0.5 V Resulting volume of a solution = 2V [H+] = Moles/Volume = 0.5V/2V = 0.25 mol/L |
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