Question

Write the equilibrium expression (Kc) for the following reacCon. PbCl2(s) ? Pb2+(aq) + 2Cl–(aq) Kc =...

Write the equilibrium expression (Kc) for the following reacCon.
PbCl2(s) ? Pb2+(aq) + 2Cl–(aq) Kc = ______________________
b. (6 pts) At 25˚C, a certain mass of PbCl2 was dissolved in water and the equilibrium
concentraCon of dissolved Pb2+ was measured to be 1.62 x 10–2 M. Calculate Kc for this
process. (Hint: If 1 mole of Pb2+ dissolves, how much Cl– dissolves with it?)
c. (4 pts) In ques@on 2b, the mass of solid PbCl2 added to water was not stated. Explain
why that value is not important in this equilibrium reacCon.

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Reaction (i) Pb2+(aq) + 2 Cl-(aq) ⇌ PbCl2(s) If NaOH is added to reaction (i), a...
Reaction (i) Pb2+(aq) + 2 Cl-(aq) ⇌ PbCl2(s) If NaOH is added to reaction (i), a second precipitation reaction will occur: Reaction (ii) Pb2+(aq) + 2 OH-(aq) ⇌ Pb(OH)2(s) The important aspect of this is that the two reactions take place within the same container (just because we draw them separately on paper does not mean they are separate inside in the container). Thus, reaction (i) and (ii) are coupled at the molecular level by a common chemical species that...
Predict the direction the equilibrium will shift if HCl is added to the following. a. PbCl2(s)...
Predict the direction the equilibrium will shift if HCl is added to the following. a. PbCl2(s)  Pb2+(aq) + 2Cl-(aq) b. A 5.0 M solution of acetic acid c. An aqueous solution of ammonium iodide d. An aqueous solution of ammonia
Write the expression for the equilibrium constant Kc for each of the following equations: b   FeO(s)...
Write the expression for the equilibrium constant Kc for each of the following equations: b   FeO(s) + CO(g) - Fe(s) + CO2(g) d   PbI2(s) - Pb2 1 (aq) + 2I2(aq)
Lead ions can be precipitated from solution with KClaccording to the following reaction: Pb2+(aq)+2KCl(aq)→PbCl2(s)+2K+(aq) When 28.8...
Lead ions can be precipitated from solution with KClaccording to the following reaction: Pb2+(aq)+2KCl(aq)→PbCl2(s)+2K+(aq) When 28.8 g KCl is added to a solution containing 25.7 gPb2+, a PbCl2 precipitate forms. The precipitate is filtered and dried and found to have a mass of 29.1 g . 1. Determine the limiting reactant (Pb2+ or KCL) 2. Determine theoretical yield of PbCl2 3. Determine percent yield for the reaction
write the equilibrium constant expression, Kc, for this reaction: NiS(s) > Ni^+2(aq) + S^-2(aq). given that...
write the equilibrium constant expression, Kc, for this reaction: NiS(s) > Ni^+2(aq) + S^-2(aq). given that Ksp=3.0×10^-10
B. Solubility Equilibrium: Finding a Value for Ksp 1. Volume 0.30 M Pb(NO3)2 = 5.0 mL.  ...
B. Solubility Equilibrium: Finding a Value for Ksp 1. Volume 0.30 M Pb(NO3)2 = 5.0 mL.   Number of moles Pb2+ = [M x V(stock sln)] = 0.0015 moles 2. a. Volume 0.30 M HCl used: 5.0 mL b. Number of moles Cl- added: 0.0015 moles 3. Observations: a. in hot water: the solid settled on the bottom then completely dissolved b. in cold water: No change, it stayed dissolved 4. Volume H2O added to dissolve PbCl2: 4.0 mL a. Total...
Write the equilibrium‑constant expression for the reaction A(s)+3B(l)↽−−⇀2C(aq)+D(aq)A(s)+3B(l)↽−−⇀2C(aq)+D(aq) in terms of [A],[A], [B],[B], [C],[C], and [D],[D],...
Write the equilibrium‑constant expression for the reaction A(s)+3B(l)↽−−⇀2C(aq)+D(aq)A(s)+3B(l)↽−−⇀2C(aq)+D(aq) in terms of [A],[A], [B],[B], [C],[C], and [D],[D], as needed. Note that ?c,Kc, which is sometimes symbolized as ?eq,Keq, denotes that the equilibrium constant is expressed using molar concentrations. For this question, ?cKc means the same thing as ?eq.
Can you please check my answers and tell me if they are correct? thanks 8. Write...
Can you please check my answers and tell me if they are correct? thanks 8. Write the ionic equation for dissolution and the solubility product (Ksp) expression for each of the following slightly soluble ionic compounds: (a) PbCl2       PbCl2(s) --> Pb2+(aq) + 2Cl-(aq)                           Ksp = [Pb2+][Cl-]2   (b) Ag2S        Ag2S(s) --> 2Ag+(aq) + S2-(aq)                             Ksp =[Ag+]2[S2-] (c) Sr3(PO4)2 Sr3(PO4)2(s) --> 3Sr2+(aq) + 2PO43-(aq)         Ksp =[Sr2+]3[PO43-]2 (d) SrSO4       SrSO4(s) --> Sr2+(aq) + SO42-(aq)                       Ksp =[Sr2+][SO42-] 14. Assuming that no equilibria other than dissolution are involved,...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT