Post a New Question

chem

posted by .

Complete the table below: Note: Make simplifying assumptions, do not use the quadratic formula.
What is the pH of the solution created by combining 11.80 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)?
with 8.00 mL of the 0.10 M HC2H3O2(aq)?


Complete the table below: Note: Make simplifying assumptions, do not use the quadratic formula.
What are the pH values if you take into account that the 8.00 mL of 0.10 M Acid was first diluted with 100 mL of water (like it will be in the experiment you perform in lab)?

  • chem -

    11.80 mL x 0.1M NaOH = 1.180 mmoles.
    8.00 mL x 0.1M HCl = 0.800 mmoles
    8.00 mL x 0.1M HAc = 0.800 mmoles.

    ............HCl + NaOH ==> NaCl + H2O
    initial..0.800...1.180.....0.......0
    change..-0.800..-0.800.....0.800.0.800
    equi.......0.....0.380.....0.800..0.800
    So you have 0.380 mmoles NaOH in 11.8+8.00 mL soln and (OH^-) = (NaOH) and convert to pH.

    ..........HAc + NaOH ==> NaAc + H2O
    initial..0.800..1.180.....0......0
    change..-0.800..-0.800..0.800..0.800
    equil....0......0.380...0.800..0.800
    Ignoring the OH^- that might be added due to the hydrolysis of the NaAc salt (which is negligible) pH is determined by the mmoles NaOH/mL.

    The second half is all yours. Post your work if you get stuck.

  • chem -

    im having trouble with the samee one....

    i got 1.72 for the pH and its still wrong

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. chem lab (webwork)

    What is the pH of the solution created by combining 1.80 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)?
  2. chemistry

    how do you solve this? What is the pH of the solution created by combining 12.30 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)?
  3. chemistry

    how do you solve this What is the pH of the solution created by combining 2.60 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)?
  4. CHEMISTRY (WEBWORK)

    What is the pH of the solution created by combining 1.20 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)?
  5. Chem Webwork UCI

    Complete the table below: What is the pH of the solution created by combining 0.70 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)?
  6. chemistry

    Complete the table below: Note: Make simplifying assumptions, do not use the quadratic formula. What is the pH of the solution created by combining 2.00 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)?
  7. chemistry

    What is the pH of the solution created by combining 11.40 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)?
  8. Chemsitry

    Hi I have done this problem like 15 times when I find the mole I get .8 for HCL and .23 for Naoh and the equilibrium conc i get is negative. then I plug it in and get it wrong. Can someone please help me?
  9. chem

    Complete the table below: Note: Make simplifying assumptions, do not use the quadratic formula. What is the pH of the solution created by combining 1.00 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)?
  10. Chem

    Complete the table below: Note: Make simplifying assumptions, do not use the quadratic formula. What is the pH of the solution created by combining 1.90 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)?

More Similar Questions

Post a New Question