science:Chemistry

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Find the pH of a solution obtained by mixing 100cm3 of 01MHCl solution with 100cm3 of 0.2M NaOH

  • science:Chemistry -

    Convert volume to L

    100cm^3=100mL=0.100L

    Multiply your volume by the molarity given for each one and subtract moles of acid from moles of base.

    looking at the numbers, I see that you are going to get more moles of base than acid, (i.e., 0.01 moles of NaOH. But double check.

    molarity of unreacted NaOH=(0.01 moles of NaOH/total volume of acid and base used (0.2L)

    plug in the value obtain from above in the below equation and solve for pH.

    pOH=-log[OH-]

    pH=14-pOH

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