The Ksp value for calcium sulfate [CaSO4] is 2.40 X 10-5 and a professor made 1825 mL of a CaSO4(ag) solution but then one of his graduate student accidentally poured in a 0.125 M solution of calcium phosphate [Ca3(PO4)2] solution. You may ignore the additional volume coming from the Cag(PO4)2 solution to make the calculation simpler. Calculate the new calcium (Ca2+) ion concentration at equilibrium with this common ion effect. 0.4583 0.4919 0.2550 0.2962 0.3942 91..docx LAB EXP. #3 -.docx Show All

The Ksp value for calcium sulfate [CaSO4] is 2.40 X 10-5 and a professor made 1825 mL of a CaSO4(ag) solution but then one of his graduate student accidentally poured in a 0.125 M solution of calcium phosphate [Ca3(PO4)2] solution. You may ignore the additional volume coming from the Cag(PO4)2 solution to make the calculation simpler. Calculate the new calcium (Ca2+) ion concentration at equilibrium with this common ion effect. 0.4583 0.4919 0.2550 0.2962 0.3942 91..docx LAB EXP. #3 -.docx Show All

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

Calculate the concentration of IO3 in a 8.18 mM Pb(NO3)2 solution saturated with Pb(IO3)2. The Ksp of Pb(IO3)2 is 2.5 x 10-13. Assume that Pb(IO3)2 is a negligible source of Pb²+ compared to Pb(NO3)2. [103] = M A different solution contains dissolved NaIO₂. What is the concentration of NaIO, if adding excess Pb(IO3)₂(s) produces a Pb²+ concentration of 6.90 x 10-6 M? concentration: M
ess Consider the insoluble compound silver hydroxide, AgOH. The silver ion also forms a complex with ammonia. Write a balanced net ionic equation to show why the solubility of AgOH (s) increases in the presence of ammonia and calculate the equilibrium constant for this reaction. For Ag(NH3)2+, Kf = 1.1×107. Be sure to specify states such as (aq) or (s). Knet + +
Suppose that the solubility of calcium iodate are 2.5 g/L at 20oC and 5.5 g/L at 60oC. What are the solubility in mol/L at 20oC and at 60oC? How many milliliters (mL) of 0.045 M Na2S2O3 will be required to titrate a 10.0-mL sample of saturated Ca(IO3)2 solution collected at 20oC and 60oC, respectively?
The Ksp value for magnesium arsenate [Mg3(AsO4)2] is 2.00 X 10-20 so if a chemist added 1.19 x 10-2 M of Pb3(AsO4)2(aq) which is a common ion then what would be the concentration of the Magnesium ion Mg2+(aq) in Molarity at equilibrium? 3.89 x 10-6 4.07 x 10-6 3.47 x 10-6 2.45 x 10-6 2.81 x 10-6 3.28 x 10-6 2.64 x 10-6 3.69 x 10-6 3.01 x 10-6 4.29 x 10-6
Ksp for PbCl2(s) is 1.6 x 10-³. If you mix 200.0 mL of 0.010 M Pb(NO3)2(aq) with 400.0 mL of 0.010 M NaCI(aq), then sodium nitrate will precipitate. the concentration of CI will be 0.0033 M. no precipitate will form. PbCl2(s) will precipitate.
You look at the solubility of Ca(OH)2 in water (Ksp = 4 x 10–10). You wait until the system reaches equilibrium and then add Cr(C2H3O2)3. (Ksp = 6.7 x 10–31 for Cr(OH)3). Would affect do you think would occur to the solubility? (increase, decrease, stay the same) Show this through a calculation (Note: Two equilibria must be considered).
Hydroxyapatite, Ca₁(PO)(OH)₂, Ca₁(PO4)(OH)₂ (s) ⇒ 10 Ca² ¹(aq) + 6PO³(aq) + 2OH(aq) has a solubility constant of Ksp = 2.34 × 10-5⁹, and dissociates according to 10 Solid hydroxyapatite is dissolved in water to form a saturated solution. What is the concentration of Ca²+in this solution if [OH-] is fixed at 6.20 x 10-4 M?
A student combines Fe(NO3)3 solution and KSCN solution to produce a solution in which the initial concentrations of Fe3+(aq) and SCN–(aq) are both 4 × 10–2 M. The chemical equilibrium forms FeSCN2+(aq): Fe3+ + SCN- <=> FeSCN2+ The absorbance of this solution (from FeSCN2+) is measured as 0.235, and Beer's law equation (the trend line from best fitting) as Abs = 243 x Concentration of FeSCN2+ + 0.012 Determine the equilibrium concentration for FeSCN2+ in mol/L.
25.00 mL of a saturated Ca(OH)2 sample requires 22.50 mL of 0.0250 M HCl to neutralize it. Calculate the value for Ksp of Ca(OH)2 from this data. Given the equilibrium equation: Ca(OH)2 (s) ↔ Ca2+ (aq) + 2OH– (aq) Use titration data to determine moles of OH¯ in the 25.0 mL sample (Remember, every one H+ neutralizes one OH¯.)
A student combines Fe(NO3)3 solution and KSCN solution to produce a solution in which the initial concentrations of Fe3+(aq) and SCN–(aq) are both 5.58 × 10–2 M. The chemical equilibrium forms FeSCN2+(aq): Fe3+ + SCN- <=> FeSCN2+ The absorbance of this solution (from FeSCN2+) is measured as 0.161, and Beer's law equation (the trend line from best fitting) as Absorbance = 189 x Concentration of FeSCN2+ + 0.02 Determine the equilibrium concentration for SCN- in mol/L.
The equation for the dissolving of magnesium hydroxide is: Mg(O H)2(s) + heat 2 Mg2+a a) + 2 OH minus, (a q) solid 2 dissolved What happens when a solution containing H* is added? minus The concentration of O H decreases. The concentration of O H minus increases. The concentration of Mg2+ decreases.
The Ksp for calcium hydroxide is 1.3 x 105. What is the maximum number of grams of Ca(OH)2 that can dissolve in a 2.0 L solution?