Which of the following liquids will have the lowest freezing point? A) purr H_2O

Question

Which of the following liquids will have the lowest freezing point? A) purr H_2O B) aqueous glucose (0.60 m) C) aqueous KF (0.50 m) D) aqueous Fel_3 (0.24 m) E) aqueous sucrose (0.60 m) A possible mechanism for the overall reaction Br_2(g) + 2NO(g) rightarrow 2NOBr(g) is NO(g) + Br_2(g) NOBr_2(s) NOBr_2(g) + NO(g) 2NOBr The rate law for formation of NOBr bawd on this mechanism is rate = _____ A) k_1[NO]^1/2 B) k_1[Br_2]^1/2 C) (k_2k_1/k^-1)[NO][Br_2]^2 D) (k_1/k^-1)^2[NO]^2 E) (k_2k_1/k^-1)[NO^2][Br_2] Which compound listed below has the smallest molar solubility in water? A) Cd(OH)_2 B) CdCO_3 C) ZnCO_3 D) CaF_2 E) Agl A 0.1 M aqueous solution of _____ will have a pH of 7.0 at 25.0 degree C. NaOCI KCI NH_ 4Cl Ca(OAc)_2 A) NaOCI B) KCI C) NH_4CI D) Ca(OAc)_2 E) KCI and NH_4CI

Explanation / Answer

(25)

Correct option is (C) 0.5m KF, because it will produce maximum number of particles in solution by dissociation

(26)

(27)

Correct option is (E) AgI, because it has the lowest Ksp value

(28)

Correct option is (B) KCl, because it is a salt of strong acid and strong base

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