Determine the activity of the metal ion species in each of the following saturated solutions. A....
Determine the activity coefficient of an ion of Ba?at each of the following conditions. A. A solution with total ionic strength of 0.0100 M B. A solution of that Bation in pure water (no other salts) C. A solution of 0.050 M KNO D. A solution buffered at an ionic strength of 0.0075 M. HINT: 0.0075 M is half way between 0.0050 and 0.0100 M.
The Ksp for Hg2Br2 is 1.2 ? 10-18. Calculate [ Hg22+ ] in saturated solutions of Hg2Br2 in 0.001 M KBr. Hints: (1) calculate ionic strength and the mean ionic activity coefficient. (2) calculate m+ from ksp and mean ionic activity coefficient. mz logy, = -0.509|242. 11
What is the solubility of Ag3PO4 (s) in pure water given Ksp = 1.8x 10^-18? Ignoring activity and effects of ionic strength, calculate the solubility of Ag3PO4 (s) in 0.1 M H3PO4. '
POST-LABORATORY QUESTIONS student analyzed a saturated CaF2 solution by the ion-exchange chromatography/titration method and found that [Ca] 2.14 x 10 M. Write out the expression for Ksp of CaF and determine the numerical value of Ksp Suppose a student overtitrates the eluent from the CaSO, experiment (that is, she titrates to a persistent deep pink endpoint). Will the calculated value of Ksp be too high, too low, or unaffected? Explain. 2. 3. The value of Kp for lead (lIl) chromate...
Determine the ionic strength of the solution, the activity coefficients, and the activities of each ion in a solution containing 0.01 M (molar) NaCl, 0.005 M Ca(OH)2 and 0.01M MgSO4 I have solved for the ionic strength already but am stuck on calculating the activity coefficients! as well as the activity of each ion, Ionic strength = 0.065 M
20. Ethylenediaminetetraacetate (EDTA4-) is used as a complexing agent in chemical analysis. Solutions of EDTA4- are used to treat heavy metal poisoning by removing the heavy metal in the form of a soluble complex ion. The complex [Pb(EDTA]2- has Kf = 1.1 x 1018. a. Calculate the concentration of Pb2+ in a saturated solution of Pb(OH)2, Ksp = 1.2 x 10-15. b. Calculate the concentration of Pb2+ in a saturated solution of Pb(OH)2 buffered at pH 13.00 c. Calculate the...
Determine the ionic strength of the solution, the activity coefficients, and the activities of each ion in a solution containing 0.01 M (molar) NaCl, 0.005 M Ca(OH)2 and 0.01M MgSO4
3. Determine the activity of 0.1 M H2S04 given that y+0.265. What will happen as the mearn activity coefficient approaches 1? 5P 4. Calculate and compare ionic strength: 0.10 M KCL(aq) vs. 0.20 M in CuS0 SP 5. Calculate the mean activity coefficient of 0.2M MgC2. What does your obtained value mean for the actual concentrations of ions in solution? 10P 6. Calculate the solubility of the slightly water soluble salt AgBr(s) at an ionic strength of 0.1M. Compare your...
Please show work! i will rate Determine the ionic strength. u. for each of the solutions. Assume complete dissociation of each salt and ignore any hydrolysis reactions A solution of 0.00418 M HCI. A solution of 0.00135 M LaBr- A solution of 0.000873 M CaBr, and 0.000635 M Cuci, What is the activity coefficient for each ion at the given ionic strength at 25 °C? Activity coefficients at various ionic strengths can be found in this table. so ( =...
22. Which of the following pairs of compounds and ions could be used to form a buffer solution? (a) 0.10 M HCl and 0.10 M Naci (b) 0.10 M NH4Cl and 0.10 M NH3 (c) 0.10 M HNO2 and 1.0 x 10'M NaNO, 23. An activity coefficient (a) measures the deviation of behavior of ions from ideality. (b) is obtained by multiplying the concentration of a solution times the ionic strength. (c) replaces the concentration term in chemical calculations. It...