Illustration 3. A solution of sodium carbonaté is čausticize of partly slaked commercial lime, The lime contains only calcium earbona an impurity. A small amount of free caustie soda is in the original solution mass obtained from the causticization has the following analysis: by the add CACO, Ca (OH): Na:CO NaOH 13.48% 0.28 0.61 ceam 10.36 75.27 Naz cOnt LaloH). 100.00%

A solution of Na,SO, in water is saturated at 50°C. When a saturated solution of Na,SO, is cooled, crystals of Na,SO4-10H2O separate from the solution Temperature, °C Solubility of Na,SO, g/100g water 49 50 46.7 10 9 If 1000 kg of this solution is cooled to 10°C, the percentage yield obtained is nearly а. 91 b. 90 с. 100 d. 80

1. AgCl with a Ksp of 1.6E-10 has a higher molar solubility than Ag2CrO4 with a Ksp of 2.0E-12. True or False? 2. The solubility of AgCl(s) in water is higher than its solubility in 0.10M NaCl(aq).  The Ksp of AgCl is 1.6E-10. True or False?  3. True or False? In a galvanic cell made by connecting a Zn/Zn2+ half cell to a Au/Au3+ half cell, the cations in the salt bridge flow into the Au half cell. Zn2+ + 2e- → Zn     Eº = -0.76V Au3++ 3e- → Au     Eº = 1.498V 4. Consider a three-bulb system.  Given six gaseous atoms, putting two atoms in each bulb has a lower entropy than distributing all six atoms in the middle bulb. True or False? 5. For the reaction O2(g) → O2(l), the reaction is spontaneous at low temperatures. True or False?

Name: NetID: 1. Determine the molar solubility (in M to two decimal places) of solid cobalt(II) hydroxide = 5.92 x 10-15) when dissolved in: 2pl Yozlows bus on (Ksp (a) water (at 25 °C) sead (b) an aqueous solution containing 0.1 M NaOH (at 25 °C) A: 1.14×10-5 A: 5.92×10-13

Q.2 The molar solubility for Mg3(P04), is 3.5 × 10“M. Calculate the Ksp of Mg:(PO4)2 for the reaction: 3- Mg3(PO4)2 (s) = 3 Mg²*(aq) + 2PO," (aq) The K, expression is: Kgg = [Mg²* j³ [PO_² j²

Non-Commercial Substances Hypothesis: Soluble in Test Bond Molecular Structure ΔΕΝ H2O? Result: H20 Solubility Result: Hexane Substance Classification Solubility Hexane? H2O: pS Sodium Na--Br lonic Bromide 1.9 Hexane: I |--| lodine NP C 0.0 Ammonium N/A lonic Carbonate NH4* O O NH4* Sodium N/A lonic Acetate C--H NP C 0.4 H-C-OH C--O PC H-C-OH Glycerol 1.0 H-C-OH O--H PC 1.4 HI

(Q49) The molar solubility of bismuth iodide (Bil3) at 35°C is 6.54 x 10-5 M. What is the value of Ksp at this temperature? The balanced chemical equation for the dissociation of bismuth iodide is: Bil3 (s) Bi3+ (ag) + 3 |- (aq). O 7.71 x 10-19 4.28 x 10-9 O 1.83 x 10-17 O 5.49 x 10-17 4.94 x 10-16

Calculated solely at 25 Celsius of PbCrO4 in pure water and in a .0130M. Na2CrO4 solution. Ksp of PbCrO4 is 2.8x10^-13

Which of these expressions correctly expresses the solubility-product constant for Ag,PO in water? (a) [Ag][PO.] (b) [Ag][PO] (c) [4g"]³[PO³] (d) [4g^][PO] (e) [4g"][ PO, P

L_{2} is considerably more soluble in CC*L_{4}(1) than it is in H_{2}*O(1) At a certain temperature, the concentration of I_{2} in its saturated aqueous solution is 1.3*10^-3* M and the equilibrium achieved when I_{2} distributes itself between H_{2}*O and CC*L{4} is 12 (aq) rightleftharpoons 1 2 (CCL 4),; K = 85.5Part A: A 12.0-mL sample of saturated I_{2}(aq) is shaken with 12.0 mL of CC*L_{4} After equilibrium is established, the two liquid layers are separated. How many milligrams of will be in the aqueous layer? I_{2}