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D Question 7 4 pts Which of the following substances has the lowest solubility in water?...
Question 5 4 pts Choose the pair of substances that are most likely to form a homogeneous solution. A) CH3CH2NH2 and CH3CH2OH B) KI and Hg C) LiCl and CH 14 D) C3Hg and C2H5OH OB ОА Ос OD 4 pts Question 6
Which of the following substances has greatest solubility in water? SA CUCI, Ksp = 19x 10-7 • PbF2, Ksp = 3.6 x 10-8 Cds, Ksp - 1.0 x 10-24 SrS04, Ksp = 3.2 107 Ba(103)2, Ksp - 1.5 x 10-9
4 pts Question 8 Choose the aqueous solution that has the lowest boiling point. These are all solutions of nonvolatile. A) 0.20 m NaNO2 B) 0.20 m K2PO4 C) 0.20 m C6H1206 D) 0.20 m KAl(SO4)2 ОА ОВ Ос OD 4 pts Question 9
4 pts Question 15 Identify the place which has the highest boiling point of water. A) Death Valley, 282 feet below sea level B) a pressurized passenger jet, 35,000 feet C) New Orleans, sea level D) Mt. Everest, 29,035 feet OD OB ос ОА 4 pts Question 16
Question 9 (0.1 points) Which of the following salts have the highest and the lowest molar solubility in water? AgBr Ksp= 5*10-13 Ag2SO3 Ksp= 1.5*10-14 Ag3PO4 Ksp=1.8*10-18 LaF3 Ksp= 2*10-19 Mg3(PO4)2 Ksp=1*10-25 The lowest LaF3, the highest Ag2SO3 The lowest Ag2SO3, the highest Ag3PO4 The lowest AgBr the highest Ag3PO4 The lowest Mg3(PO4)2, the highest AgBr
Question 9 4 pts Which of the following species is amphoteric? A) CO32- B) HF C) NH* D) HPO 2 ОА OD OB Ос 4 pts Question 10
10) Which of the following salts has the lowest solubility in water? COCO3 Ksp = 1.0 x 10-10 b) Agl Ksp=8.3 x 10-17 ) CdS Ksp = 1.0 x10-24 d) CuCl Ksp = 1.9 x10
Which of the following salts has the highest molar solubility in water? Opbla (Ksp = 6.5 x 10-9 Fe(OH)2 (Ksp = 8 x 10-16) AgBr (Ksp = 5.0 x 10-13) Ni(OH)2 (Ksp - 2.0 x 10-15) SrCoz (Ksp = 9,3 * 10-10)
Question 13 4 pts Which of the following hydrocarbons has one pi bond and one cycloalkane? A) C6H8 B) C5Hg C) C3H8 D) C4H8 OB ОА Ос OD 4 pts
D Question 21 4 pts Write the expression for K for the reaction below. Mg3(PO4)2(s) = 3 Mg2+(aq) + 2 PO ?"(aq) A) K - [Mg][PO, 1 B) K = [3 Mg2+ ][2 PO ] C) K = [Mg][PO] D) K = [Mg;PO] [Mg][POT OD ОА Ос OB