The solubility of Ni3(PO4)2 in water at a particular temperature is 8.0 × 10-4 M. What is Ksp for Ni3(PO4)2?

2. An effluent waste stream contains 3300mg/L organic matter ((CH2O) suspended and dissolved) and 27mg / L ammonium ion NH4+ (as N). Write chemical equations for the complete oxidation of (CH2O) and NH4+ and calculate the total BOD of this effluent in mg/L O2

What is the solubility product expression for Co(OH)3? Ksp= [Co3+][30H] Ksp= 3[Co3+][OH73 Ksp= [Co3+][OH73 Ksp= [Co3+][30H]3 Ksp= [Co3*][OH]

The equilibrium constant for the formation of Cu(CN)42- is 2.0 x 1030. Calculate the value of pCu2+, or -log[Cu2+], if 2.21 g of CuCl2 is dissolved in 1.000 L of a 0.926 M solution by NaCN. The addition of CuCl2 does not affect the volume (the final volume is always 1,000 L).

In which of the following aqueous solutions would you expect silver sulfide (Ag₂S, Ksp = 2 x 10-51) to have the greatest solubility? O 0.10 M NaOH O 0.10 M Bas O 0.10 M HNO3 O H₂0 (1) O 0.10 M AgNO3 1.0 L of a solution containing 2.0 x 10-7 M AgNO3 solution is mixed with 1.0 L of a 4.0 x 107 M NaBr solution. Ksp for AgBr is 5.0 x 10 -13 O a precipitate forms because Ksp < Q O no precipitate forms because K₁p < Q O a precipitate just begins to form because Q=Ksp Which of the following statements is true? The molar solubility of silver sulfate alone is approximately 1.6 x 102 M. Calculate the molar solubility of Ag2SO4 in a 0.20 M solution of AgNO3(aq). (Ksp (Ag2SO4) = 1.5 x 105) O 7.2 x 107 M O 6.2 x 10⁹ M O 3.2 x 10 M 99.94 M 3.8X18M

For the aqueous [HgI4]complex Ky = 6.76 × 1029 at 25 °C. Suppose equal volumes of 0.0062 M Hg (NO3)2 solution and 0.42M Nal solution are mixed. Calculate the equilibrium molarity of aqueous Hg** ion. Round your answer to 2 significant digits. ☐ M

A solution containing 310 g of NaNOs in 300.0g of H,O at 50°C is cooled to 20°C. Use the solubility information below. How many grams of solid NaNO, crystallized after cooling? Solubility (g/100 gH,O) Substance 20°C 50°C KCI 34 43 NANO, 88 110 204 260 264 22 36 46

The blue complex Cu(H,O);+ and the yellow complex CuCl- exist in equilibrium. Cu(H, O);+(aq) + 4 CI¯(aq) = CuCl (aq) + 4 H, O(1) Upon addition of LiCl to this equilibrium in solution, which observation would be expected? The solution turns blue. The solution turns yellow. The Cu2+ salts precipitate out of solution. The volume of water decreases. Incorrect O O O

Which of the following is the correct solubility product constant expression for PBSO4? O Kp = [Pb2]°[So,212 %3D Kp = [Pb2*][SO,2 ] O Ksp = 2[Pb2'12[SO,2] %3D Ksp = 2[Pb2']² 2[So,212 %3D

In which of the following solutions would PbBr₂ be the most soluble? O 0.10 M Pb(NO3)2 O 0.20 M KNO3 0 0.15 M NaBr