Some compounds that are insoluble in water dissolve in acids. Which of these com

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Some compounds that are insoluble in water dissolve in acids. Which of these compounds is expected to be more soluble in 1.0 M HNO_3 than in an equal volume of distilled water AgCl BaCO_3 AIPO_4 2 only 1 and 3 only 2 and 3 only 1, 2 and 3 A 0.10 M solution of fluoride ions is gradually added to a solution containing Ba^2+, Ca^2+, and Pb^2+ ions, each at a concentration of 1 x 10^-3 M. In what order, from first to last, will the precipiates of BaF_2, CaF_2, and PbF_2 form BaF_2, CaF_2, and PbF_2 form BaF_2 K_sp = 1.8 x 10^-7 ; Ca F_2 K_sp = 1.5 x 10^-10; PbF_2 K_sp = 7.1 x 10^-7 x 10^-7 CaF_2, PbF_2, BaF_2 BaF_2, CaF_2, PbF_2 PbF_2, baF_2 CaF_2 CaF_2, BaF_2, PbF_2 M3 100.0 mL of saturated Ba(OH)_2 as added to beaker also containing 100.0 mL of satorated Ba(OH)_2. Which of the following statements is true appt will form no ppt will form the combined solutions will be twice as basic the combined solutins will be half as basic more than one olf the abve is true Which of the following metal hydroxides is amphoteric Fe(OH)_3Sr(OH)_2 BA(OH)_2 Pb(OH)_2 Given equal concentrations of the ions Hg^2+ and Ag^+ in a 500 mL breaker. Using which of the following reagents would give the best separation of the two ions H-2S NaC_2H_3)_2 NaBr SO_4^2 The solubuility product constant of AgCl is the same in water as it is in 0.2 M AgNO_3 greater in water than it is in 0.2 M AgNO_3 less in water than it is in 0.2 M AgNO_3. less in 0.2 M NaCl than it is in 0.2 M AgNO_3. For which process or reaction is delta S positive at 25 degree C 2NO_2(g) right arrow N_2O_4(g) CO_2(g) right arrow CO_2(s) H^+(aq) + OH^-(aq) right arrow H-2O(1) Identify the signs for delta G degree, delta H degree, and delta Sdegreed for the process below at room temperature. 2Nacl(s) right arrow Na(s) Cl_2(g) Given the reaction: CO(g) + 2 H_2 (g) + CH_3OH (g) right arrow C_2H_5OH (g) + H_2O (g) with the thermodynamic values; delta G degree_rxn = -97.9 kJ/mol, delta h DEGREE_RXN = 165.7 Kj/MOL, DeltaS degree_rxn = -227.4 J/Kmol. This reaction is favored at: hifgh T. Low T All temperatures. not at any temperatures Which of the following changes below if any, could create spontaneous conditions 2 H^+ (aq) + 2 Br (aq) + 2NO_2 (g) right arrow Br_2(1) + 2HNO_2(aq) delta G degree = +4.4 kJ A satuarted solution of Hgl_2 is found to be 2 x 10^-9 M. What is K_ap for Hgl_2

Explanation / Answer

M1. A) BaCO3 only insoluble in water dissolves in 1 M HNO3.

M2. D)The order of precipitation from first to last is: CaF2 > BaF2 > PbF2

M3. C) The combined solution will be twice as basic.

M4. D) Pb(OH)2 is amphoteric metal hydroxide.

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