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Question- 1. It requires 25.05 mL of NaOH solution of unknown concentration to titrate 25.00 mL of 0.1000 M H2SO4 solution. The chemical equation that summarizes the reactio is H2SO4 + 2NaOH --> 2H2O + Na2SO4. Calculate the concentration of the NaOH solution.

2. Suppose we add 30.0 mL of .100 M NaOH to 50.0 mL of 0.100 M HCl. Calculate the concentration of the remaining acid that was not neutralized. what is the pH of the solution?

3. Naphthalene normally freezes at 80.2 degrees C and has a Kf value of 6.9 C/m. A solution containing 1.19 g of sulfer dissolved in 10.20 g of naphthalene freezes at 77.1 degrees C. Calculate the molality of the solution and the molar mass of the solute, sulfer.

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