If 12.3 mL of 0.25 M HNO₃ is required to titrate 18.4 mL of Ba(OH)₂, the molarity of the Ba(OH)₂ solution is ________.

Question

Quizplus · Accepted Answer

The balanced chemical equation for the reaction between HNO3 and Ba(OH)2 is HNO3 + Ba(OH)2 → Ba(NO3)2 + 2H2O, indicating a 1:1 mole ratio between HNO3 and Ba(OH)2. Using the formula M1V1 = M2V2, where M1 and V1 are the molarity and volume of the HNO3 solution, and M2 and V2 are the molarity and volume of the Ba(OH)2 solution, we can solve for M2. Substituting the given values (M1 = 0.25 M, V1 = 12.3 mL, V2 = 18.4 mL), we find M2 = (0.25 M * 12.3 mL) / 18.4 mL = 0.084 M.

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