Determine the minimum concentration of the precipitating agent on the right to c

Question

Determine the minimum concentration of the precipitating agent on the right to cause precipitation of the cation from the solution on the left.

Part A

3.5×102 M Ba(NO3)2;NaF

Express your answer using two significant figures.

2.6×102

SubmitMy AnswersGive Up

Answer Requested

Part B

8.5×102 M CaI2;K2SO4

Express your answer using two significant figures.

SubmitMy AnswersGive Up

Part C

1.8×103 M AgNO3;RbCl

Express your answer using two significant figures.

Determine the minimum concentration of the precipitating agent on the right to cause precipitation of the cation from the solution on the left.

Part A

3.5×102 M Ba(NO3)2;NaF

Express your answer using two significant figures.

[NaF] =

2.6×102

  M  

SubmitMy AnswersGive Up

Answer Requested

Part B

8.5×102 M CaI2;K2SO4

Express your answer using two significant figures.

[K2SO4] =   M  

SubmitMy AnswersGive Up

Part C

1.8×103 M AgNO3;RbCl

Express your answer using two significant figures.

[RbCl] =

Explanation / Answer

CaSO4 ----> Ca2+ + (SO4)2-

Ksp= [Ca2+] [SO42-]

Ksp = 9.1×10–6

9.1×10–6 = 8.5*10-2 [SO42-]

[SO42-]= 9.1×10–6/  8.5*10-2= 1.07*10^-4 M

K2SO4=  1.07*10^-4 M

AgCl --> Ag+ & Cl-

Ksp = [Ag+] [Cl-]

Ksp= 1.8*10^-10

1.8*10^-10= 1.8*10^-3 [Cl-]

[Cl-]= 1.8*10^-10/ 1.8*10^-3 = 10^-7 M

[RbCl]= 10^-7 M

Related Questions

Navigate

• Browse (All)
• Browse D
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.