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95. 25mL of the given HCl solution requires 30mL of 0.1M sodium carbonate solution.What is the volume of this HCl solution required to titrated 30mL of 0.2M aqueous NaOH solution

a. 12.5mL

b. 75 mL

c. 50 mL

d. 25mL

Ans. d

(2)

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