Actually, I think I have the answer for this one, but I do need help with this other one if possible.
A 15.0 mL volume of 0.0750M NaOH is required to reach a phenolphthalein endpoint in titrating a solution of vinegar sample. Calculate the moles of acetic acid in the vinegar sample.
Thanks in advance.
What relationship exists between h+ ion concentration and oh- ion concentration?
Please answer asap, thanks!
2 answers
For the H^+/OH^- problem:
(H^+)(OH^-) = Kw = 1E-14
For the titration problem. Vinegar is CH3COOH.
CH3COOH + NaOH ==> CH3COONa + H2O
moles NaOH = M x L = 0.0750 M x 0.015 L = ?
You know 1 mol CH3COOH is neutalized by 1 mol NaOH; therefore, mols CH3COOH = moles NaOH and you know moles NaOH.
(H^+)(OH^-) = Kw = 1E-14
For the titration problem. Vinegar is CH3COOH.
CH3COOH + NaOH ==> CH3COONa + H2O
moles NaOH = M x L = 0.0750 M x 0.015 L = ?
You know 1 mol CH3COOH is neutalized by 1 mol NaOH; therefore, mols CH3COOH = moles NaOH and you know moles NaOH.
1 answer