1)
mass of Al2(SO4)3 = 5.10 lb = 2313.3 g
moles of Al2(SO4)3 = 2313 / 342.15
= 6.76 mol
volume = 1950 gal = 7381.5 L
concentration = 6.76 / 7381.6
= 9.16 x 10^-4 M
Ksp = [Al3+][OH-]^3
1.0 x 10^-33 = 1.83 x 10^-3 x [OH-]^3
[OH-] = 8.17 x 10^-11 M
pOH = -log (8.17 x 10^-11) = 10.1
pH = 3.91
Below are some potentially useful conversion 1 lb 1 gallon l quart = - 453.6 4...
At what pH will precipitation of Al(OH)3 begin if 3.40 lb of aluminum sulfate, Al2(SO4)3, is added to 1450 gallons of water (with a negligible change in volume)?
The precipitation of aluminum hydroxide, Al(OH), (K 1.3 × 10-33), is sometimes used to purify water. Part A At what pH will precipitation of A1(OH)3 begin if 6.80 lb of aluminum sulfate, Alb (SO4)3. is added to 1550 gallons of water with a negligible change in volume)? Express your answer numerically to two decimal places. Hints pH= 3.88 Submit My Answers Give Up Correct Part B Approximately how many pounds of calcium oxide, CaO, must be added to the water...
1. In which solution will aluminum hydroxide, Al(OH)3, be least soluble? The solutions are similar except that they have the following pH values: Hint: Common ion effect. Which two ions dictate acidity and basicity? a. 3 b. 7 c. 9 d. 11 2. Potassium perchlorate has a solubility product constant of 10-2. Which is true about the following solution of KClO4: [K+] = 0.01 M, [ClO4 −] = 0.01 M a. Ksp < Q and no precipitation occurs b....