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Does a precipitate of PbBr2 form if 50.0 mL of 0.0100 M Pb(NO3)2 is mixed with …
Related Topics
Wize High School Grade 12 Chemistry Textbook > Acids and Bases
Solubility Product Constant, Ksp
4 Activities
Does a precipitate of PbBr
2
form if 50.0 mL of 0.0100 M Pb(NO
3
)
2
is mixed with 50.0 mL of 0.100 M NaBr? (K
sp
PbBr
2
= 2.1 x 10
-6
)
Yes, the concentration of Pb
2+
is greater than K
sp
so the reaction shifts to reactants
Yes, the reaction quotient is larger than K
sp
so the reaction shifts to reactants
No, the reaction quotient is larger than K
sp
so the reaction shifts right
No, K
sp
is larger than the concentration of Pb
2+
so the reaction shifts to products
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More Solubility Product Constant, Ksp Questions:
For the following reaction, define Ksp.
SrCO
3(s)
<----> Sr
2+
(aq)
+ CO
3
2-
(aq)
Given the following values of
K
sp
for four slightly soluble sulphides at 25 °C.
S
u
l
p
h
i
d
e
K
s
p
C
d
S
3.6
×
10
–
29
C
u
S
8.7
×
10
–
36
P
b
S
8.4
×
10
–
28
M
n
S
5.1
×
10
–
15
\def\arraystretch{1.5} \begin{array}{c} \rm Sulphide &&K_{sp} \\ \hline CdS&& 3.6 \times10^{–29}\\ CuS && 8.7 \times10^{–36} \\ PbS&& 8.4 \times 10^{–28} \\ MnS&&5.1 \times10^{–15}\\ \end{array}
Sulphide
C
d
S
C
u
S
P
b
S
M
n
S
K
s
p
3.6
×
1
0
–29
8.7
×
1
0
–36
8.4
×
1
0
–28
5.1
×
1
0
–15
Which one of the following ions exists in the lowest concentration in a solution in which the sulphide ion concentration had been fixed at some (fairly large) constant value at 25°C?
Solubility Product: Ion Affects
You are trying to dissolve AgBr
(s)
in an aqueous solution. Which salt should you add to increase the solubility of silver bromide?
A student is adding a saturated solution of lead (II) sulphate (K
sp
= 1.3 x 10
-8
) to a reaction mixture but the label which used to have the concentration given is missing. Calculate the volume of solution the student needs to add in order to add 2.5 x 10
-5
mol of Pb
2+
ions.
The K
sp
for CuBr is 6.3x10
−9
. When 1.00 mL of 0.0010 M CuNO
3
is mixed with 1.00 mL of 0.0010 M NaBr, will a precipitate form? Assume that any sodium salts or nitrate salts fully dissociate in water.
Solubility
A student is preparing to test the molar solubility of PbHPO
4
(s) (K
sp
=3.5×10
−12
) in different aqueous solutions. When this salt dissociates, it produces Pb
2+
(aq) and the amphiprotic ion HPO
4
2−
(aq).They prepare separate beakers with 100 mL of each of the following solutions to test:
water
0.1 M Pb(NO
3
)
2
(aq) (which fully dissociates in water)