A 1.0 L solution of 0.30 M in H3O+(aq) containing Mn2+(aq), Cd2+(aq), and Fe2+(aq), all at...
A 1.0 L solution of 0.30 M in H3O+(aq) containing Mn2+(aq), Cd2+(aq), and Fe2+(aq), all at 0.010 M, was saturated with H2S(g) at room temperature. Assume that the pH of the solution remains constant and that the [H2S]sat = 0.10 M. The Ksp for MnS9S) is 2.5 x 10-13 , Ksp for CdS(s) is 8.0 x 10 -27 and Ksp for FeS(s) is 6.3 x10-18 . For H2S:Ka1=1.3 x 10-7. Ka2=8.5 x 10-14. Calculate the equilibrium concentrations of Mn2+(aq),Cd2+(aq), and Fe2+(aq).
Homework Answers
The ph of the solution is 0,5228 (ph = -log[H+]) , this mean, ph is to low to let Fe2+,Mn2+ and Cd+2 precipitate, and also the concentration of S-2 will be too low, [S-2] = 1.2277x10-20, we could say that the concentration of those ions stay basically constant.
Add Answer to:
A 1.0 L solution of 0.30 M in H3O+(aq)
containing Mn2+(aq),
Cd2+(aq), and Fe2+(aq),
all at...
Precipitation question. A mixture contains 1.0 x 10^-3 M Cu2+ and 1.0 x 10^-3 Mn2+ and...
Precipitation question. A mixture contains 1.0 x 10^-3 M Cu2+ and 1.0 x 10^-3 Mn2+ and is saturated with 0.10 H2S. Determine a pH where CuS precipitates but MnS does not precipitate. Ksp for CuS is 8.5 x 10^-45, and Ksp for MnS is 2.3 x 10^-13. Ka1 of H2S is 8.9 x 10^-8 and Ka2 is 1 x 10^-19. Please show all your work.
KOH(s) was added to 1.0 L of HNO3(aq) 0.30 M. Calculate [H3O+] in the solution after...
KOH(s) was added to 1.0 L of HNO3(aq) 0.30 M. Calculate [H3O+] in the solution after the addition of 0.87 mol of KOH(s).
An acidic solution is 0.01 M in Mg2+, Cu2+, and Fe2+. The pH of the solution...
An acidic solution is 0.01 M in Mg2+, Cu2+, and Fe2+. The pH of the solution is adjusted by adding NaOH. What is the maximum pH that removes only the Cu2+? Mg(OH)2(s) ↔ Mg2+(aq) + 2OH–(aq) Ksp = 6.3 x 10–10 Fe(OH)2(s) ↔ Fe2+(aq) + 2OH–(aq) Ksp = 4.1 x 10–15 Cu(OH)2(s) ↔ Cu2+(aq) + 2OH–(aq) Ksp = 2.2 x 10–20
What is the pH of a buffered solution saturated with hydrogensulfide ([H2S] = 0.10 M)...
What is the pH of a buffered solution saturated with hydrogen sulfide ([H2S] = 0.10 M) at 25°C if PbS (s) is precipitated, leaving [Pb2+] = 1.0 × 10–7 M, without precipitating any MnS (s)? The original solution is 0.030 M in both Pb2+ (aq) and Mn2+ (aq). Ksp = 8.0 × 10–28 M2 for PbS (s),Ksp = 2.5 × 10–13 M2 for MnS (s), andSelect one:a. 0.03b. 2c. 0.4d. 7
The ionization constants for the diprotic acid H 2S are 1.0 x 10 -7 and 1.3 x 10 -13. H2S (aq)&nb...
The ionization constants for the diprotic acid H 2S are 1.0 x 10 -7 and 1.3 x 10 -13. H2S (aq) + H2O (l) <=> HS -(aq) + H3O +(aq) Ka = 1.0 x 10 -7 HS -(aq) + H2O (l) <=> S-2 (aq) + H3O +(aq) Ka = 1.3 x 10 -13 What is the equilibrium concentration of HS - in a 0.300 M solution of H2S?
Copper(l) ions in aqueous solution react with NH3(aq) according to Cu(NH3);(aq) 10 Cu"(aq) +2NH3(aq) -> K,=6.3...
Copper(l) ions in aqueous solution react with NH3(aq) according to Cu(NH3);(aq) 10 Cu"(aq) +2NH3(aq) -> K,=6.3 x 10 Calculate the solubility (in g. L-1) of CuBr(s) (Ksp = 6.3x10-9) in 0.64 M NH3(aq). Number g/L
Consider the half‑reaction for the reduction of Cd 2+ Cd2+ to Cd(s) Cd(s) . Cd 2...
Consider the half‑reaction for the reduction of Cd 2+ Cd2+ to
Cd(s) Cd(s) . Cd 2 +(aq)+2 e − ⟶Cd(s) ? ∘ Cd 2+ /Cd =−0.403 V
Cd2+(aq)+2e−⟶Cd(s)ECd2+/Cd∘=−0.403 V Calculate the potential of the
cadmium electrode at 25 ∘ C 25 ∘C when immersed in a 0.0560 M
0.0560 M solution of CdBr 2 . CdBr2. ? Cd = ECd= V V Calculate the
potential of the cadmium electrode at 25 ∘ C 25 ∘C when immersed in
a 0.0330...
Question 2 2 pts Solid Mn(OH)2 is added to a solution of 0.100 M FeCl2 What...
Question 2 2 pts Solid Mn(OH)2 is added to a solution of 0.100 M FeCl2 What is the molar concentration of OH before adding it to FeCl2? Helpful formulas: Mn(OH)2 (s) Mn2+ (aq) + 20H |(aq) Ksp 1.6x 10-13 FeCl2 (s) Fe2+ (aq) 20H (aq) Ksp 4.9 x 1017 O 5.5x 104 M 3.4x 105 M O 6.8 x 10-5 M O 2.75 x 104 M Ouestion 3 2 nts
5. What is the concentration of silver(I) ion in a saturated solution of silver(I) carbonate containing...
5. What is the concentration of silver(I) ion in a saturated solution of silver(I) carbonate containing 0.0030 M Na2CO3? For Ag2CO3, Ksp = 8.6 x 10-12. A) 6.0 x 10-4 M B) 2.0 x 10-'M C) 8.0 x 10-'M D) 5.4 x 10-5M E) 8.0 x 10-4M 6. Balance the following oxidation-reduction occurring in acidic solution. MnO4 (aq) + Co2+(aq) →Mn²+ (aq) + Co3+ (aq) A) B) C) D) E) MnO4 (aq) + 8 H+ (aq) + Co2+(aq) Mn²+ (aq)...
Consider the reaction Sr(s) + FeOH+ (aq) + H3O+(aq) = Sr2+ (aq) + Fe(s) + 2H2O(l)....
Consider the reaction
Sr(s) + FeOH+ (aq) + H3O+(aq) = Sr2+ (aq) + Fe(s) + 2H2O(l).
Which of the following will result in a decrease in Sr2+
concentration?
tools excama.pdf * O 1.2 x 10-3M O 2.5 x 10-3 O 7.4 x 10-9 O 6.3 x 10-5 5. onsider the reaction Sr(s) + FeOH(aq) +H,O*(aq) — Sr+ (aq) + Fe(s) + 2H,000). Which of the following will result in a decrease in Sr? concentration? O Adding excess Fe(s). O Adding...
Copper(l) ions in aqueous solution react with NH3(aq) according to Cu(NH3);(aq) 10 Cu"(aq) +2NH3(aq) -> K,=6.3 x 10 Calculate the solubility (in g. L-1) of CuBr(s) (Ksp = 6.3x10-9) in 0.64 M NH3(aq). Number g/L
Consider the half‑reaction for the reduction of Cd 2+ Cd2+ to
Cd(s) Cd(s) . Cd 2 +(aq)+2 e − ⟶Cd(s) ? ∘ Cd 2+ /Cd =−0.403 V
Cd2+(aq)+2e−⟶Cd(s)ECd2+/Cd∘=−0.403 V Calculate the potential of the
cadmium electrode at 25 ∘ C 25 ∘C when immersed in a 0.0560 M
0.0560 M solution of CdBr 2 . CdBr2. ? Cd = ECd= V V Calculate the
potential of the cadmium electrode at 25 ∘ C 25 ∘C when immersed in
a 0.0330...
Question 2 2 pts Solid Mn(OH)2 is added to a solution of 0.100 M FeCl2 What is the molar concentration of OH before adding it to FeCl2? Helpful formulas: Mn(OH)2 (s) Mn2+ (aq) + 20H |(aq) Ksp 1.6x 10-13 FeCl2 (s) Fe2+ (aq) 20H (aq) Ksp 4.9 x 1017 O 5.5x 104 M 3.4x 105 M O 6.8 x 10-5 M O 2.75 x 104 M Ouestion 3 2 nts
5. What is the concentration of silver(I) ion in a saturated solution of silver(I) carbonate containing 0.0030 M Na2CO3? For Ag2CO3, Ksp = 8.6 x 10-12. A) 6.0 x 10-4 M B) 2.0 x 10-'M C) 8.0 x 10-'M D) 5.4 x 10-5M E) 8.0 x 10-4M 6. Balance the following oxidation-reduction occurring in acidic solution. MnO4 (aq) + Co2+(aq) →Mn²+ (aq) + Co3+ (aq) A) B) C) D) E) MnO4 (aq) + 8 H+ (aq) + Co2+(aq) Mn²+ (aq)...
Consider the reaction
Sr(s) + FeOH+ (aq) + H3O+(aq) = Sr2+ (aq) + Fe(s) + 2H2O(l).
Which of the following will result in a decrease in Sr2+
concentration?
tools excama.pdf * O 1.2 x 10-3M O 2.5 x 10-3 O 7.4 x 10-9 O 6.3 x 10-5 5. onsider the reaction Sr(s) + FeOH(aq) +H,O*(aq) — Sr+ (aq) + Fe(s) + 2H,000). Which of the following will result in a decrease in Sr? concentration? O Adding excess Fe(s). O Adding...
Most questions answered within 3 hours.
-
how do radio waves get emitted from Jupiter?
- do they come from radiation from planet...
asked 12 seconds ago -
The test statistic used in the F test for the equality of two
variances is calculated...
asked 11 minutes ago -
How does neutralisation of IL-6 trans-signaling affect the
autoimmune disease and inflammation? What if the trans-signaling...
asked 1 minute ago -
f an allele is 'fixed' in a population, what is its
frequency?
0.50
0.75
0.25
0...
asked 16 minutes ago -
Do we have a duty of national loyalty in business? What is the
major argument in...
asked 16 minutes ago -
compare the international treatment of segment reporting to the
us gaap treatment
asked 12 minutes ago -
A statistics student finds herself struggling with a newspaper
article stating that only eighteen percent of...
asked 46 minutes ago -
People with beriberi, a disease caused by a thiamin deficiency,
have elevated levels of blood pyruvate...
asked 33 minutes ago -
PYTHON Programming Exercise 2: Create a Simple Cost Calculator
Write a program that displays input fields...
asked 39 minutes ago -
1.Seki agreed that Groupon could sell 18 hot air
balloon rides on his Magical Adventures company...
asked 40 minutes ago -
A cohort study is conducted to determine whether smoking is
associated with an increased risk of...
asked 45 minutes ago -
Create the pseudo-code/flowchart for an application class named
Monogram. Its main() method inputs three variables that...
asked 46 minutes ago