QUESTION 19 For which salt in each of the following groups will the solubility depend on...
For which salt in each of the following groups will the solubility depend on pH? 1) Naf, NaBr ii) Ba(ClO4)2, Ba(ClO2)2 iii) Ca(OH)2, Cal2 iv) Fe(NO3)2, Fe(CN)2 O A. i) Naf; ii) Ba(ClO2)2: iii) Ca(OH)2; iv) Fe(CN)2 B. i) NaBr; ii) Ba(ClO4)2; iii) Calz; iv) Fe(NO3)2 C. i) Naf; ii) Ba(ClO4)2; iii) Ca(OH)2; iv) Fe(NO3)2 D. i) Naf; ii) Ba(ClO2)2; iii) Cal2: iv) Fe(CN)2 OE. ) NaBr; ii) Ba(ClO2)2; iii) Calz; iv) Fe(CN)2
for which substance will solubility be increased by adding acid/lowering ph? AgCl, CaF2, Pb(NO3)2, AgBr, PbCl2
Which of the following will show a pH dependence (acid dependence) on solubility? I. CaF2 II. PbI2. III. Ni(CN)2
For which of the following salts do you predict the experimental solubility (as determined in a lab) to exceed the theoretical solubility (as calculated by the Ksp of the salt)? Hg2(CN)2 AgBr PbCl2 Fe(OH)2
17. Which of the following compounds is the strongest acid? A. 1 OH B. II C. III D. IV E. V CN NO2 NO2 1 - II III CN CN 요 CO2Et IV V
1-6 please ! Lecture 19 At-home practice Which factor had the effect of decreasing the solubility (compared to all the other factors which increase solubility)? 1. A sample of PbSO4 solid has reached equilibrium in a beaker of water. If the ionic strength of the solution is then increased by adding LINO3 salt, what happens to the activity coefficients of the Pb2 and SO,2 ions? What happens to the solubility of the PbSO4? 2. Which of these four salts will...
4. Using the table below which give the solubility rules for ionic compounds, predict whether each of the reactions below will produce a precipitate and, if so, what is the precipitate. If there is more than one precipitate, write down both of them. (2 points per reaction, 10 points total) Table 1 Solubility Rules for lonic Compounds Soluble in Water Insoluble in Water Any salt with Li+, Na+, K+, NH4+, NO3- Most chlorides, C oblava a AgCl, PbCl2, and HgCl2...
QUESTION 19 Which of the following compounds will have a different solubility with a change in pH? O A AgNO3 O B. Caciz O C. Ca(OH)2 O D. Cuci O E Hg2012
rect Question 19 0/5 pt Which of the following are oxidation-reduction reactions? 1. PC13 + Cl2 PCIE II. Cu + 2AgNO3 - Cu(NO3)2 + 2Ag III. CO2 + 2LIOH -- Li2CO3 + H20 IV. FeCl2 + 2NaOH - Fe(OH)2 + 2Naci I and II 1.11, and III IV 1, 11, 111, and IV correct Question 20 0/5 pts Answer the following questions that refer to the unbalanced reaction shown below as it occurs in acidic solution: _Cr202- (aq) + __...
Which of the following reactions is spontaneous in the reverse direction as written? I) Ni+2(aq) + Pb(s) → Ni(s) + Pb+2(aq) Ecell° = -0.124 V II) Pb+2(aq) + H2(g) → Pb(s) + 2H+(aq) Ecell° = -0.126 V III) Cu+2(aq) + Fe(s) → Cu(s) + Fe+2(aq) Ecell° = +0.78 V IV) Zn+2(aq) + 2Ag(s) → Zn+2(aq) + 2Ag+(aq) Ecell° = -1.562 V a. I, II & IV b. IV c. III d. II e. I f. II & IV g. I...