Asked by Jen

Using the standardized NaOH solution, the student weighs out 0.2550g of a solid unknown acid and finds that 28.50mL of the NaOH solution is required to reach an end point with the acid. Calculate the molar mass of the unknown acid, assuming the acid is diprotic.

Answers

Answered by DrBob222
H2A + 2NaOH ==> Na2A + 2H2O
mols NaOH = M x L = ?
mols H2A = 2 x mols NaOH from the coefficients in the balanced equation.
mols H2A = grams H2A/molar mass H2A
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