A series of solutions containing NaOH, Na 2c03 and NaHCO3, alone or in compatible combinations, were titrated with 0.1202 M HCI. Given are the volumes of acid required to titrate 25.00 mL portions of each solution each to a (1) phenolphthalein and (2) methyl red endpoint. Which of the following contains NaOH?

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Q: 1. Calculate the pH of a solution prepared by mixing 35.0 mL of 0.75 M HC2H3O2 and 15.0 mL of 0.60 M…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…