A solid diprotic acid, H2A, has a molar mass which is being determined in this question. Following the procedure, a student weighed out 0.647 grams of the H2A sample, dissolved it in 50.0 mL of water and titrated it with 0.235 molar sodium hydroxide solution. It required 37.45 mL of the base to exactly neutralize the H2A sample. Based on this data, what is the molar mass of H2A to three significant digits? Hint: Write the reaction out and balance it to help with your titration calculations.
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