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Solved: What volume in milliliters of 0.0985 M sodium hydroxide solution is required to
Chapter 14, Problem 52P(choose chapter or problem)
QUESTION:
What volume in milliliters of 0.0985 M sodium hydroxide solution is required to reach the equivalence point in the complete titration of a 15.0-mL sample of 0.124 M phosphoric acid?
Questions & Answers
QUESTION:
What volume in milliliters of 0.0985 M sodium hydroxide solution is required to reach the equivalence point in the complete titration of a 15.0-mL sample of 0.124 M phosphoric acid?
ANSWER:Answer :
Step 1
From the given question
We can write the following equation
H3PO4 + 3NaOH 3H2O + Na3PO4
moles H3PO4 = M x L = ?
Using the coefficients in the balanced equation, convert moles H3PO4 to mols NaOH. That is moles H3PO4 x 3 = mols NaOH.