CHEM 111-02 Exam 2 November14, 2016 Part I. Circle the letter that corresponds t

Question

CHEM 111-02 Exam 2 November14, 2016 Part I. Circle the letter that corresponds to the best answer in cach of the g questions 1. Of the species below, only is-an electrolyte. 2. The nst ionic equation for the reaction of solid NiCO, and aqueous bydriodic acidso produce an aqueous solution of Nilz accompaniod by the evolution of COp s i A) 2Nico3 (') + HI (aq) 2 H2od) + CO2 (g) . 2Ni2+ (as) B) Nico) (s) +1. (aq) 2H20 a) + co2(g) + Ni2. (aq) + HI(ag) C) Nico3 (s) + 2HI (aq) 2H20d) + CO2(g) + Ni12 (aq) D) Nico, (s) + 2HI (aq) H20 (l) + CO2(g) . Ni2-(aq) . 21. (m) E) Nico3(s) + 2H+ (aq) H2Od) + CO2 (g) + Ni2. (aq) 3. When aqueous solutions of are mixed, a precipitate forms A) Niciz and AgNO B) K2S04 and AlBr3 C) Nal and KBr D) KOH and Ba(NO3)12 E) LizCO3 and Csl 4. Which one of the following is a base and a strong electrolyte A) HF B) NaOH 5. What is the concentration (M) of a KCI solution prepared by dissolving 11.7 g of KC in sufficient water to give 350 mL of solution? A) 18 B) 0.16 C) 0.45 D) 27 )0.39

Explanation / Answer

1. B

The substance which dissociate into ions in solution are called electrolytes.

Out of given options glucose i.e C6H12O6 doesn't disassociate into ions is not electrolyte.

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