Other like carbonate , phosphate and hydroxypetite are insoluble salts.
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If CaF2 is insoluble, what other elements may form precipitate with Ca2+
"Hard" water contains mainly salts of Ca2+ and Mg2+, both of which form many insoluble salts. You have a water sample and need to determine whether it contains Ca2+ and/or Mg2+. When you add ammonia to the solution, followed by ammonium chloride and ammonium oxalate, a white precipitate of CaC2O4 should form if Ca2+ is present. What is the purpose of adding the ammonium chloride to the reactant mixture? a. The chloride ion helps to form the calcium chloride precipitate....
At what molarity will 0.100 M Ca2+ begin to precipitate out of a solution of MgF2?(Ksp of CaF2=3.9x10-11) clear explanation please
Calcium fluoride, CaF2, is an insoluble salt (Ksp = 1.46 x 10-10) that can be formed by precipitation by mixing solutions of calcium nitrate and sodium fluoride. Suppose 200.0 mL of a 0.600 M Ca(NO3)2(aq) solution are mixed with 400.0 mL of a 0.0600 M NaF(aq) solution. Will a precipitate form? How much calcium fluoride could form?
Upon reacting, which combination of compounds will not form any precipitate? O AlBrz + Na3PO4 CaF2 + MgSO4 Sr12 + Rb2504 RbNO3 + LiOH
1. Solid calcium fluoride (CaF2) establishes the following equilibrium in solution: CaF2(s) = Ca2+(aq) + 2F-(aq) Ke = 1.5 x 10-10 A solution initially contains 2.45 g of CaF2. a. In which direction will the reaction move to reach equilibrium? Explain your reasoning b. Calculate the equilibrium concentrations of Ca2+ and F. How much CaF2 (in mg) dissolves in solution? c. Another solution initially contains 2.45 g of CaF2 and 0.0025 M NaF. What are the equilibrium concentrations of Ca2+...
10.1 CaF2 and MgF2 are mutually insoluble in the solid state and form a simple bi- nary eutectic system. Calculate the composition and temperature of the eutec tic melt assuming that the liquid solutions are Raoultian. The actual eutectic occurs at XCaF, 0.45 and T = 1243 K. 10.1 CaF2 and MgF2 are mutually insoluble in the solid state and form a simple bi- nary eutectic system. Calculate the composition and temperature of the eutec tic melt assuming that the...
Calculate Q to determine whether or not a precipitate will form in a solution containing 0.043 M Ca(NO3)2 and 0.0055 M NaF. Step 1: identify the possible precipitate. In this example, it is CaF2. Look up its Ksp value (table 16.2). Step 2: Write a balanced equation for dissolution of CaF2: Step 3: Write the equation for Ksp for CaF2: Step 4: Write an expression for Q: Step 5: Plug in the concentrations above to calculate Q: Step 6: Compare...
5. What reagent will precipitate? (a) Cu2+ but not Ba2+? (b) Ag+ but not Ca2+? (c) Ba2+ but not NH4+?
please show work c. Consider the dissolution of CaF2 in water. The Ksp of CaF2 is 1.5 x 1010 at 25°C Qualitatively, what would the addition of 10 g of solid CaF2 to 100 g of water look like? d. The enthlapy of solution for CaF2 is +13.4 kJ/mol at 25°C. If the temperature is lowered to 10° C, what change(s) if any will result to Ksp? Justify your answer. e. A solution is prepared mL of 0.0010 M NaF....
A solution is 0.0045 M in both Pb2+ and Ca2+. Solid Na2SO4 is added to precipitate the sulfates. What concentration of SO42‒ is needed to precipitate as much of the Pb2+ without precipitating the Ca2+? Ksp(PbSO4) = 1.6 × 10‒8, Ksp(CaSO4) = 2.4 × 10‒4