also called iroa(In hydroxide. Fe(O, is 143 x lg 4 The solubility of ferrous gra

Question

also called iroa(In hydroxide. Fe(O, is 143 x lg 4 The solubility of ferrous gram per liter at 25 "C. a) ) Write the expression for the solubility product constant, K balanced equation for the solubility c)Calculate the K, of Fe(OH), at 25 "C 5) What is the molar solubility ofplumbous sulfate ina) pure water, and bin 00S00 M plumbous nitrate? Kip plumbous sulfate- 1.6x 10 6) a) Why is the solubility of NaCI unaffected by addition of HNO, or NaOH? b) Why is the solubility of NH.CI greater in basic solution than in acidic solution? c) Why does the solubility of CaCO, increase as the pH decreases (as acid is added)? 7) wWill a pot form upon mixing 75.0 ml of a 00125 M ferric nitrate sin with 100.0 mL of a 0.250 M sodium hydroxide? (Knp ferie hydroxide 1.6x10)

Explanation / Answer

Ans 4

Molar solubility = 1.43*10^-3 g/L x 1mol/90g

= 1.58 x 10^-5 mol/L

Balanced equation

Fe(OH)2 = Fe2+ + 2OH-

Solubility product constant

Ksp = [Fe2+] [OH-]2

[Fe2+] = 1.58 x 10^-5 mol/L

[OH-] = 2*1.58 x 10^-5 = 3.17 * 10^-5 mol/L

Ksp = (1.58 x 10^-5) * (3.17 * 10^-5)2

=  1.595 x 10^-14

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

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