At 15° C and in pure water, the solubility of AgCl (silver chloride) is 8.4×10-5 mol.L-¹. The one of silver bromide (AgBr) is 3.8×10-7 mol.L-¹. What are their solubilities in a solution saturated by both the salts?

Lead(II) iodide is a poorly water soluble solid compound. Its Ksp is 1.4 x 10* (at 25°C). What is the solubility of lead(1I) iodide in water at 25°C ? (in units of molarity) Write the Køp expression first. Lead(II) iodide is Pblz. The molar mass of lead(1I) iodide is 461 g/mol. How much lead(II) iodide, in grams, will dissolve in 100 mL of water at 25°C? (this is the nominal solubility of lead(II) iodide)

1. AgCl with a Ksp of 1.6E-10 has a higher molar solubility than Ag2CrO4 with a Ksp of 2.0E-12. True or False? 2. The solubility of AgCl(s) in water is higher than its solubility in 0.10M NaCl(aq).  The Ksp of AgCl is 1.6E-10. True or False?  3. True or False? In a galvanic cell made by connecting a Zn/Zn2+ half cell to a Au/Au3+ half cell, the cations in the salt bridge flow into the Au half cell. Zn2+ + 2e- → Zn     Eº = -0.76V Au3++ 3e- → Au     Eº = 1.498V 4. Consider a three-bulb system.  Given six gaseous atoms, putting two atoms in each bulb has a lower entropy than distributing all six atoms in the middle bulb. True or False? 5. For the reaction O2(g) → O2(l), the reaction is spontaneous at low temperatures. True or False?

The solubility-product constants, Kp, at 25 °C for two compounds [iron(II) carbonate, FeCO3, and cadmium(II) carbonate, CdCO3] are given by the table Substance Кар FeCO3 2.10 x 10-11 CdCO3 1.80 x 10-14 Part A A solution of Na2CO3 is added dropwise to a solution that contains 1.03x10-2 M Fe2+ and 1.52x10-2 MCd2+. What concentration of CO² is need to initiate precipitation? Neglect any volume changes during the addition. Express your answer with the appropriate units. ▸ View Available Hint(s) [CO32] = Value Units Submit Part B Complete previous part(s) Part C Complete previous part(s) Provide Feedback ? Next >