chemistry

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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?

  • chemistry -

    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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