A 50.0 mL of 0.250 M Ca(NO3)2 solution is added to 100.0 mL of 0.150 M NaF solution and as a results of the reaction a white precipitate of CaF2 is formed. Show all your assumptions and verifications.
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- An experiment to observe the effect of ionic strength on the solubility of Ca(OH)2 was conducted. Ca(OH)2 was added to 250 mL 0.01 M KCl, stirred until equilibrium. This was then filtered, and 50 mL of the filtrate was measured out. The 50 mL filtrate was then titrated with standardized 0.13 M HCl solution until phenolphtalein endpoint (11 mL). How do I solve for the solubility s of Ca(OH)2? Please provide an explanation of the process (do I multiply ionic strength μ to the solubility [where s = [Ca(OH)2) = [Ca2+] = 1/2[OH-]?)An experiment to observe the effect of ionic strength on the solubility of Ca(OH)2 was conducted. Ca(OH)2 was added to 250 mL 0.01 M KCl, stirred until equilibrium. This was then filtered, and 50 mL of the filtrate was measured out. The 50 mL filtrate was then titrated with standardized 0.13 M HCl solution until phenolphtalein endpoint (11 mL). How do I solve for the solubility s of Ca(OH)2? Please provide an explanation of the process (do I multiply ionic strength μ to the solubility [where s = [Ca(OH)2) = [Ca2+] = 1/2[OH-]?) I would like to know how the diverse ion effect would affect the solubility of Ca(OH)2. How does the ionic strength μ of KCl affect this?Calculate the Ksp of solid Mg3(PO4)2 if the molar solubility of Mg3(PO4)2 in 0.0015 M Na3PO4 is 3.5 x 10-6.
- Calculate the solubility of CrF3 in g /100mL . (Ksp of CrF3 6.6*10^ -11 )The solubility of Fe(OH)2 is measured and found to be 1.15×10-3 g/L. Use this information to calculate a Ksp value for iron(II) hydroxide.Solubility tests of benzoic acid with a dissolution enthalpy of -32kJ / mol were performed at 2 different temperatures. In the first experiment carried out at 27 ° C, 5 mL of the sample taken from the benzoic acid solution is taken into 25 mL of water and titrated with 0.02M NaOH. As a result of the titration, there is a consumption of 8 mL, respectively. In the second experiment performed at a different temperature under the same conditions, 22 mL was consumed. Taking advantage of these results a) Solubility of benzoic acid at 27 ° C .................................................; b) solubility of benzoic acid at different temperature ................................................; c) second test temperature ....................................................... (M (benzoic acid): 122.12 g / mol) Note: enter only required numerical values and units in the spaces in the question.
- A solution contains 0.25 M Ni(NO3)2 and 0.25 M Cu(NO3)2. A. Can the metal ions be separated by slowly adding Na2CO3 aq solution? Assume that for successful separation 99% of the metal ion must be precipitated before the other metal ion begins to precipitate, and assume no volume change on addition of Na2CO3 solution. Pls show step by step. Ksp of CuCO3 = 1.4 x10-10 Ksp of NiCO3 = 1.42X 10-7 B. If you need to redissolve the salt that was first precipitated, what pH will you use and why ?a 10g soil sample was gently stirred with 250 ml of 1.0 M CH3COO(NH4) solution for 24 h and centrifuged to separate the solution. The solution recovered after centrifugation was titrated with distilled water to a volume of 1 liter and analyzed for cations. Analytical results showed that the solution contained 20 mg/L Ca, 2 mg/L Mg, 1 mg/L K, and 0.5 mg/L Na. Calculate the number of cation exchange equivalents and express it in meq/100 g of soilCalculate the solubility of BaSO4 with the Ksp = 1.08 x 10-10 ,in an aqueous solution with I = 0.0010 mol kg-1
- The pKb of ammonia is 4.74. Ksp of Mg(OH)2 is 5.6 x 10-12 If one 100 mL 0.1 M MgCl2 to 100 mL 0.1M NH3, would a precipitate of Mg(OH)2 form? Show using calculations why this would or would not happen.Calculate the molar solubility of thallium chloride in 0.15 M NaCl at 25°C. Ksp for TlCl is 1.7 × 10-4.1. Why must the solution be saturated when its solubility is determined? 2. Compare your experimental value for Ksp of Ca(OH)2 with the literature value (Ksp = 8.0 × 10-6 at 25°C). Account fora anydifference. 3. Is Ca(OH)2 more soluble in aqueous solution containing calcium ions or in pure water? Explain your observation in terms of shift in equilibrium and in terms of the ion product in relation to Ksp. 4. Cite possible sources of error in the experiment. 5. The solubility of CdS in water is 1.29 x10-12 M. Determine the solubility product constant for CdS. 6. The solubility product constant of Cd(OH)2 and Co(OH)2 are 7.21 × 10–15 and 5.92 × 10–15, respectively. In terms of calculating molar solubility, which of these hydroxides is less soluble?
