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Page 252 Post Lab Problem 1 (5 points). One liter of a saturated solution of lead(II) arsenate contains 2.935 100 g of Pb (Aso),(aq). What is the solubility product of the lead(II) arsenate in the reaction: Pb (ASO),(s) = 3Pb2+ (aq) + 2Aso (aq). Kp? Round off your final answer to 3 sig. figs., and enter it in the box provided with correct units: Answer: The solubility product. K of leadil) arsenate is : Kep Post Lab Problem 2 (5...
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Calculate the mass of AgBr that can be dissolved in one liter of a 0.500 M solution of Na_2S_2O_3. K_sp(AgBr) = 5.0 times 10^-13 and K_f(Ag(S_2O_3)_2^3-) = 1.7 times 10^13.
Learning Goal: To learn how to calculate the solubility from Kspand vice versa. Consider the following equilibrium between a solid salt and its dissolved form (ions) in a saturated solution: CaF2(s)⇌Ca2+(aq)+2F−(aq) At equilibrium, the ion concentrations remain constant because the rate of dissolution of solid CaF2 equals the rate of the ion crystallization. The equilibrium constant for the dissolution reaction is Ksp=[Ca2+][F−]2 Ksp is called the solubility product and can be determined experimentally by measuring thesolubility, which is the amount...
MgF2(s) <--> Mg2+(aq) + 2 F–(aq) In a saturated solution of MgF2 at 18 0C, the concentration of Mg2+ is 1.21 x 10–3 molar. The equilibrium is represented by the equation above. (a) Write the expression for the solubility-product constant, Ksp, and calculate its value at 18 0C. (b) Calculate the equilibrium concentration of Mg2+ in 1.000 liter of saturated MgF2 solution at 18 0C to which 0.100 mole of solid KF has been added. The KF dissolves completely. Assume...
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The standard molar enthalpy of combustion of ethane (C2Helgy) is -1559 7 KJ mor 1. Which energy diagram corresponds to this process? Enthalpy 1559 Reaction coordinate 3559 Reaction coordinate Enthalpy -1559 Reaction coordinate Enthalpy -1559 Question 15 (1 point) What element is reduced and what is the reducing agent in the reaction below? Fe2O3(s)...
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1. (a) 0.05 mole of MgBr2 is dissolved in 1 liter of solution and the following species form: Mg2+, Br and MgOH' (a soluble hydroxy complex of Mg?) write a mass balance on the Mg species. Write a mass balance relating the molar concentration of Br to that of Mg species (b) write a charge balance for the solution in Part a.
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2. A geologist found a large deposit of the mineral Fluorite, CaF2, within a pond of stagnant water that is undisturbed by biological activities. This mineral had been leached into the water and had established equilibrium at 25°C for a considerable length of time. The equation for the solvation of Fluorite in water...
4. Gram solubility can be calculated from the molar solubility by using the molar mass of the solid, Do You Understand? 1. Consider the equilibrium that is established when dissolving scandium fluoride (ScFz) in water. a. Write the Ksp expression (with b. Write the Ksn expression with each concentration algebraically respect to molar concentrations) expressed in relation to the molar solubility. (This is the one with for this salt. all the x's in it). chemPad Help Greek chemPad Help Greek...
a) Jim Bob analyses a buffer solution and finds it to contain in one liter: 0.220 moles of HA, and 0.430 moles of the conjugate base A-. If the Ka for the weak acid is 3.6 X 10-5. what is the pH of the buffer? b) Ephedrine (EP) is a weak acid, protonated amine which you take if you find yourself over weight, or falling asleep in class. You can buy the hydrochloride salt (HEP+)Cl (like the hydrochoride salt of...
Can someone please help me with my lab, for part 1 I need to find the ksp of Ca(OH)2 and the molar solubility and part 2 just the molar solubility. Can someone please show me how to do these calculations? PLEASE Part 1: Standard HCl conc. 0.0480 M Buret reading initial 0.00 mL Buret reading final 12.20 mL Volume of the filtrate of Ca(OH)2 solution 25.00 mL Part 2 Standard HCl conc. ...