Asked by lisa

15.00 ml of NaOH is obtained in an Erlenmeyer flask. Before titrating with .2500 M HCl, the initial volume of acid in a buret is read as 2.08 ml. At the endpoint the final volume of acid in the buret is 25.20 ml. What was the concentration of NaOH?

Answers

Answered by DrBob222
mols HCl = M x L.
M you have as 0.2500.
L. Final 25.20mL - 2.08 mL = mL HCl. Convert to L and find mols as above.
Then mols NaOH = mols HCl.
M NaOH = mols NaOH/L NaOH. Solve for M.
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