Explain what is the concentration of the hno3 solution

Reference no: EM13154127

In a titration of HNO3, you add a few drops of phenolphthalein indicator to 50.00 mL of acid in a flask. You quickly add 24.00 mL of 0.0502 M NaOH but overshoot the end point, and the solution turns deep pink. Instead of starting over, you add 38.50 mL of the acid, and the solution turns colorless. Then, it takes 3.98 mL of the NaOH to reach the end point. (a) What is the concentration of the HNO3 solution? (b) How many moles of NaOH were in excess after the first addition?

Reference no: EM13154127

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