Please answer 2&4 first iPad 7:21 PM 50% cctech.desire2learn.com Note: It is rec

Question

Please answer 2&4 first

iPad 7:21 PM 50% cctech.desire2learn.com Note: It is recommended that you save your response as you complete each question. Question 1 (10 points) a If you add 0.500 g of NaCI to a saturated solution of silver chloride, what will happen? A) The sodium chloride will dissolve. B) Nothing c) Silver chloride will precipitate out of solution. D) The silver will precipitate out of solution. Save Question 2 (10 points) If a solution of sodium phosphate produces a solution with a concentration of 0.10 M sodium ions, equilibrium? Ignore the fact that it shouldn't be insoluble. what is the solubility product (K sp) of the dissolution Sodium phosphate is Na PO4 Sodium phosphate is IV a3 P04 A) 0.010 B) 0.0027 C) 0.10 D) 0.30

Explanation / Answer

question 2.

Na3PO4 --> 3Na+ + PO4-3

Then

ratio is 1:3

so

0.1 M of Na, implies 0.1/3 = 0.0333 M of Na3PO4

so the solubility isp retty near to D, 0.0027 M

now, calculate Ksp

Ksp = [Na+]^3[PO4-3]

Ksp = (0.1)^3 * (0.1/3) = 3.333*10^-5

Question 4.

As we add more OH- to solution, then

Al+3 + 3OH --< Al(OH)3(s) forms, then

Al/(OH)3(s) + OH- --> Al(OH)4-(aq)

will dissapear eventually, since it forms Al(OH)4- which is aqueous

choose C

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

---

---

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