50.0 mL of a 0.100 -M HoAc solution is titrated with a 0.100 -M
NaOH solution. Calculate the pH at each of the following
points.
Volume of NaOH added: 0, 5, 10, 25, 40 ,45 , 50 , 55 , 60 , 70 ,
80 , 90 , 100
Consider a mixture of 50.0 mL of 0.100 M HCl and 50.0 mL of
0.100 M acetic acid. Acetic acid has a Ka of 1.8 x 10-5.
a. Calculate the pH of both solutions before mixing.
b. Construct an ICE table representative of this mixture.
c. Determine the approximate pH of the solution.
d. Determine the percent ionization of the acetic acid in this
mixture
Calculate pBa when 50.00 mL of 0.100 M EDTA is added to 50.00 mL
of 0.100 M Ba2+. For the buffered pH of 10, the fraction of EDTA in
its fully deprotonated form is 0.30. Kf = 7.59 x 107 for BaY2-.
a) 7.36
b) 7.88
c) 1.30
d) 4.33
What is the pH of a solution obtained by adding 50.0 mL of 0.100
M NaOH (aq) to 60.0 mL of 0.100 M HCl (aq)?
Select one:
a. 11.96
b. 2.04
c. 3.11
d. 7.00
QUESTION 2
What is the pH of a solution prepared by dissolving 5.86 grams
of propanoic acid, CH3CH2COOH (l),
and 1.37 grams of NaOH (s) in enough water to make exactly
250.0 mL of solution. pKa = 4.87 for propanoic
acid?
Select one:
a. 4.58...
1) Consider the titration of 50.0
mL of 0.200 M HClO4 by 0.100 M NaOH. Complete the table
with answers to the following questions:
What is the pH after 35.5 mL of NaOH has been added?
At what volume (in mL) of NaOH added does the pH of the
resulting solution equal 7.00?
50.0 ml of an acetic acid (CH3COOH) of unknown
concentration is titrated with 0.100 M NaOH. After 10.0 mL of the
base solution has been added, the pH in the titration flask is
5.30. What was the concentration of the original acetic acid
solution? (Ka(CH3COOH) = 1.8 x
10-5)
You mix 50.0 mL of a weak monoprotic acid with 50.0 mL of NaOH
solution in a coffee cup calorimeter. Both solutions (and the
calorimeter) were initially at 22.0C. The final
temperature of the neutralization reaction was determined to be
22.5C.
a) What is the total amount of heat evolved in this reaction?
Show all work.
b) If 0.135 moles of the monoprotic acid were neutralized in
this reaction, what is the molar heat of neutralization (enthalpy)
for this reaction?
6. You mix 50.0 mL of a weak monoprotic acid with 50.0 mL of
NaOH solution in a coffee cup calorimeter. Both solutions (and the
calorimeter) were initially at 22.0OC. The final temperature of the
neutralization reaction was determined to be 22.5OC. a) What is the
total amount of heat evolved in this reaction? Show all work. b) If
0.135 moles of the monoprotic acid were neutralized in this
reaction, what is the molar heat of neutralization (enthalpy) for
this...
A 50.0 mL sample of 0.0645 M AgNO3(aq) is added to 50.0 mL of
0.100 M NaIO3(aq). Calculate the [Ag+] at equilibrium in the
resulting solution. The Ksp value for AgIO3(s) is 3.17 × 10-8.
[Ag+] =____ mol/L
When 50.0 mL of 0.45 M HCl was added to 50.0 mL of 0.65 M NaOH,
the temperature change was 5.8 *C. Calculate the heat change for
the reaction (Qsoln) and the heat of neutralization
(ChangeHneut), and the state whether the reaction is
exothermic or endothermic.