what is the concentration of all the dissolved constituents in a saturated solution of CaF2 whose...

Question

Question

what is the concentration of all the dissolved constituents in a saturated solution of CaF2 whose pH is "Magically" fixed at 9.25?

science chemistry

Answer 1

Answer #1

CaF₂ $\leftrightharpoons$ Ca²⁺ + 2F^-

K_sp of CaF₂ = [Ca²⁺] [F^-]²

K_sp of CaF₂ = 3.9 $\times$ 10^-11 = (s) (2s)² = 4s³

Therefore, s = 2.1 $\times$ 10^-4mol/L

s = 2.1 $\times$ 10^-4mol/L is the concentration of Ca²⁺

For [F^-], it is 2s. Therefore, 2s = [F^-] = 4.2 $\times$ 10^-4 mol/L

Answer 2

Similar Homework Help Questions

Fluorite, CaF2, is a slightly soluble salt in water. In a saturated solution, the concentration of...

Fluorite, CaF2, is a slightly soluble salt in water. In a saturated solution, the concentration of [Ca2+] = 2.5 x 10^-4 and [F-] = 4.30 x 10^-4 a. write the dissolution equation for fluorite. b. Write Ksp expression for the dissolution of fluorite. c. Calculate the Ksp.
What concentration of Calcium ion will be present at equilibrium in a solution that is saturated...

What concentration of Calcium ion will be present at equilibrium in a solution that is saturated with CaF2 and contains 0.01 M NaF? Ksp for CaF2 = 5.3 x 10−9
What is the concentration of dissolved nitrogen in a solution that is saturated in N2 at...

What is the concentration of dissolved nitrogen in a solution that is saturated in N2 at 2.0 atm? kH= 8.42 × 10-7 mol L–1 atm–1 1. 1.7 × 10–6 mol L–1 2. 1.1 × 10–6 mol L–1 3. 2.1 × 10–6 mol L–1 4. 2.7 × 10–6 mol L–1 5. 3.1 × 10–6 mol L–1

What concentration of Calcium ion will be present at equilibrium in a solution that is saturated...

What concentration of Calcium ion will be present at equilibrium in a solution that is saturated with CaF2 and contains 0.01 M NaF? Ksp for CaF2 = 5.3 x 10−9 A. 8.1 x 10−3 M B. 1.74 x 10−3 M C. None of these D. 1.74 x 10−5 M E. 5.3 x 10−5 M
QUESTION 6 (15 points) A) A saturated solution of calcium fluoride CaF2 is found to contain...

QUESTION 6 (15 points) A) A saturated solution of calcium fluoride CaF2 is found to contain a concentration of fluoride ions [F] = 3.0 x 10-6 M. What is the value of the solubility product of this salt?
For a saturated solution of CaF2(s) find (F-). Ksp for CaF2(s) = 5.3 x 10-9. Please...

For a saturated solution of CaF2(s) find (F-). Ksp for CaF2(s) = 5.3 x 10-9. Please show work. I am studying for a test.

Calculate the concentration of ca2+, including activity coefficients, in a 0.08 M NaF solution saturated with...

Calculate the concentration of ca2+, including activity coefficients, in a 0.08 M NaF solution saturated with CaF2. Ksp=3.2x10^-11 for CaF2, alphaCa2+=600 pm, alphaF-=350 pm.
3. What is the concentration of all species at equilibrium for a saturated solution or Ag3AS04...

3. What is the concentration of all species at equilibrium for a saturated solution or Ag3AS04 given that the Ksp for this salt is 1.03 x 10-22? What is the concentration of all species at equilibrium for the same salt in a solution that already has a concentration of silver ions of 0.1 M?
2. Calculate the Kop value, if [F]-4.10 x 104 M for a saturated solution of CaF2....

2. Calculate the Kop value, if [F]-4.10 x 104 M for a saturated solution of CaF2. (3 Pts.) CaF2(s)Ca2 (aq) + 2F (aq)

4. At room temperature, what is saturated concentration of salt that can be dissolved? Express your...

4. At room temperature, what is saturated concentration of salt that can be dissolved? Express your answer in units of Molarity.