Question
In: Chemistry
19. The pH of a solution prepared by mixing 50.0 mL of 0.125 M NaOH and...
19. The pH of a solution prepared by mixing 50.0 mL of 0.125 M NaOH and 40.0 mL of
0.125 M HNO3 is ____
[A] 13.29 [B] 8.11 [C] 11.00 [D] 12.14 [E] 7.00
20. The pH of a solution prepared by mixing 50.0 mL of 0.125 M KOH and 50.0 mL of 0.125 M HCl is ______
[A] 1.34 [B] 5.78 [C]1.90 [D] 1.14 [E] 7.0
21. Consider the following table for Ksp values
|
Cadmium carbonate |
CdCO3 |
5.2 x 10-12 |
|
Cadmium hydroxide |
Cd(OH)2 |
2.5 x10-14 |
|
Cadmium fluoride |
CdF2 |
3.9 x10-11 |
|
Silver iodide |
AgI |
8.3x10-17 |
|
Zinc carbonate |
ZnCO3 |
1.4 x 10-11 |
Which will have the least solubility in the given solvent?
[A] CdCO3 [B] Cd(OH)2 [C] CdF2 [D] AgI [E] ZnCO3
22. What is the molar solubility of magnesium oxalate ( MgC2O4) in water? The solubility-
product constant for MgC2O4 is 8.6 x 10-5 at 25 °C.
[A] 4.07 [B] 1.7 x10-4 [C] 1.3 x10-2 [D] 4.3 x10-5 [E] 9.3 x10-3
Solutions
queen_honey_blossom answered 1 month agoRelated Solutions
Calculate the pH of a solution prepared by mixing a) 25.0 mL of 0.512 M NaOH...
Calculate the pH of a solution prepared by mixing a) 25.0 mL of
0.512 M NaOH and 34.0 mL of 0.187 M HCl b) 46.0 mL of 0.235 M KOH
and 50.0 mL of 0.420 M HC3H5O2 c) 400 mL of 0.250 M NH3 and 250 mL
of 0.120 M HCl
Calculate the pH of a solution prepared by mixing a) 25.0 mL of 0.512 M NaOH...
Calculate the pH of a solution prepared by mixing
a) 25.0 mL of 0.512 M NaOH and 34.0 mL of 0.187 M HCl
b) 46.0 mL of 0.235 M KOH and 50.0 mL of 0.420 M
HC3H5O2
c) 400 mL of 0.250 M NH3 and 250 mL of 0.120 M
HCl
A solution is prepared by mixing 50.0 mL of 0.50 M Cu(NO3)2 with 50.0 mL of...
A solution is prepared by mixing 50.0 mL of 0.50 M
Cu(NO3)2 with 50.0 mL of 0.50 M Co(NO3)2. Sodium hydroxide
is then added to the mixture. Assume no change in volume.
Ksp = 2.2 × 10-20 for Cu(OH)2, Ksp = 1.3 ×
10-15 for Co(OH)2
The hydroxide concentration at which the first metal hydroxide
will just begin to precipitate is __________M
Using the integer designators, the metal hydroxide that
precipitates first is {(1) Cu(OH)2 or
(2) Co(OH)2 } _____________M...
What is the pH of a solution obtained by adding 50.0 mL of 0.100 M NaOH...
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...
11. Calculate the pH of a solution prepared by mixing a) 48.0 mL of 0.212 M...
11. Calculate the pH of a solution prepared by mixing
a) 48.0 mL of 0.212 M NaOH and 66.0 mL of 0.187 M HCl
b) 69.0 mL of 0.345 M KOH and 125 mL of 0.400 M HC3H5O2
c) 350 mL of 0.130 M NH3 and 400 mL of 0.100 M HCl
1. A solution was prepared by mixing 6.00 mL of 1.00M NaOH with 40.00 mL of...
1. A solution was prepared by mixing 6.00 mL of 1.00M NaOH with
40.00 mL of 0.800M weak acid and diluting to a total volume of
100.0 mL. The pH value of this solution was measured to be 3.12.
Calculate the equilibrium hydrogen ion concentration of this
solution using the pH value.
2. For the solution from question 1, calculate the number of
moles of weak acid and calculate the number of moles of hydroxide
ion that were originally present....
50.0 mL of a 0.100 -M HoAc solution is titrated with a 0.100 -M NaOH solution....
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
a) What is the pH of a buffer solution prepared by mixing 120 mL of a...
a) What is the pH of a buffer solution prepared by mixing 120 mL
of a 0.435 M CH3CO2H with 50 mL of a .286 M
CH3CO2Na solution?
CH3CO2H Ka = 1.75 x
10-5
b) What is the resulting pH if we add 10.2 mL of a .513 M HCl
solution to this buffer? Does the pH make sense? Why/why not?
c) What is the resulting pH if we add 3.56 mL of a 0.420 M NaOH
solution to the...
Calculate the pH during the titration of 50.0 mL of 0.116 M NaOH with 0.0750 M...
Calculate the pH during the titration of 50.0 mL of 0.116 M NaOH
with 0.0750 M HNO3 at:a) 0 mL titrant b) 3 mL before equivalence c)
at equivalence d) 3 mL past equivalence
What is the pH of a solution prepared by mixing 25 ml of 0.5 HCN with...
What is the pH of a solution prepared by mixing 25 ml of 0.5 HCN
with 75 ml of 0.20 NaCN. Ka = 6.2*10^-10 for HCN. Hint: remember to
dilutions first.
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