Hydrogen sulfide is bubbled into a solution that is 0.10 M in both Pb 2 + and Fe 2 + and 0.30 M in HCl. After the solution has come to equilibrium it is saturated with H 2 S ( H 2 S [ H 2 S ] = 0.10 M ). What concentrations of Pb 2 + and Fe 2 + remain in the solution? For a saturated solution of H 2 S we can use the equilibrium: H 2 S ( a q ) + 2 H 2 O ( l ) ⇌ 2 H 3 O + ( a q ) + S 2 − ( a q ) K = 1.0 × 10 − 26 (Hint: The [H 3 O + ] changes as metal sulfides precipitate.)
Hydrogen sulfide is bubbled into a solution that is 0.10 M in both Pb 2 + and Fe 2 + and 0.30 M in HCl. After the solution has come to equilibrium it is saturated with H 2 S ( H 2 S [ H 2 S ] = 0.10 M ). What concentrations of Pb 2 + and Fe 2 + remain in the solution? For a saturated solution of H 2 S we can use the equilibrium: H 2 S ( a q ) + 2 H 2 O ( l ) ⇌ 2 H 3 O + ( a q ) + S 2 − ( a q ) K = 1.0 × 10 − 26 (Hint: The [H 3 O + ] changes as metal sulfides precipitate.)
Hydrogen sulfide is bubbled into a solution that is 0.10 M in both Pb2+ and Fe2+ and 0.30 M in HCl. After the solution has come to equilibrium it is saturated with H2S (
H
2
S
[
H
2
S
]
=
0.10
M). What concentrations of Pb2+ and Fe2+ remain in the solution? For a saturated solution of H2S we can use the equilibrium:
H
2
S
(
a
q
)
+
2
H
2
O
(
l
)
⇌
2
H
3
O
+
(
a
q
)
+
S
2
−
(
a
q
)
K
=
1.0
×
10
−
26
(Hint: The [H3O+] changes as metal sulfides precipitate.)
•
A mixture is prepared by combining 3.0 mL of 0.0050 M NaSCN (in 0.10 M HNO3) solution with 4.0
mL of 0.0030 M Fe(NO3)3 solution, and 3.0 mL of 0.10 M HNO3 solution.
Based on your average Kf value, determine the equilibrium concentrations
of Fe 3+, SCN, and FeSCN2+ in the solution. You cannot apply a small x approximation.
1) The equation below represents the equilibrium process of a saturated solution of Ca(OH)2 If the following changes are made to a saturated solution, what will be the effect on the [Ca2+]?
Ca(OH)2 (s) <--> Ca2+(aq) + 2 OH- (aq) ΔH = -16.6 kJ
A strong base is added to the solution (Decrease, Increase, No change)
More solid Ca(OH)2 is added to the container (Decrease, Increase, No change)
The solution is raised to a higher temperature (Decrease, Increase, No change)
A strong acid is added to the solution (Decrease, Increase, No change)
Ca(NO3)2 (s) is added. Ca(NO3)2 is very soluble (Decrease, Increase, No change)
Hydrogen sulfide is bubbled into a solution that is 0.10 M in both Pb2+ and Fe2+ and 0.30 M in HCl. After the solution has come to equilibrium it is saturated with H2S ([H2S] = 0.10 M). What concentrations of Pb2+ and Fe2+remain in the solution? For a saturated solution of H2S we can use the equilibrium:H2S(aq) + 2H2O(l) ⇌ 2H3O+(aq) + S2−(aq) K = 1.0 × 10−26
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Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell