Reaction: 2HCI + Ca(OH)2 →2H20 + CaCl2 Volume of saturated calcium Initial Burette Final Burette Volume of HCI hydroxide solution Volume of 0.05M HCI 0.019 L 0.006 L 0.015 L 3. Use the mols of calcium hydroxide and the volume of calcium hydroxide to determine the molarity of calcium hydroxide in the saturated solution Molarity = 0.047 M %3D 0.047 x 0.019 = 0.000893 moles 4. Use the molar solubility of calcium hydroxide (from #3, Analysis) to determine the molarity of calcium ion and the hydroxide ion in the saturated solution of calcium hydroxide. the calcium ion and hydroxide ion to determine the experimental Ksp for calcium.hydroxide Use the molarity of

Reaction: 2HCI + Ca(OH)2 →2H20 + CaCl2 Volume of saturated calcium Initial Burette Final Burette Volume of HCI hydroxide solution Volume of 0.05M HCI 0.019 L 0.006 L 0.015 L 3. Use the mols of calcium hydroxide and the volume of calcium hydroxide to determine the molarity of calcium hydroxide in the saturated solution Molarity = 0.047 M %3D 0.047 x 0.019 = 0.000893 moles 4. Use the molar solubility of calcium hydroxide (from #3, Analysis) to determine the molarity of calcium ion and the hydroxide ion in the saturated solution of calcium hydroxide. the calcium ion and hydroxide ion to determine the experimental Ksp for calcium.hydroxide Use the molarity of

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter13: The Chemistry Of Solutes And Solutions

Section13.6: Expressing Solution Composition

Problem 13.7PSP

See similar textbooks

Similar questions

Derive a general expression that shows pH dependence of the distributioncoefficient defined in (2-20) for a weak acid between a fermentation broth and an organic solvent.
Consider the titration illustrated in Figure 8.] Anhydrous sodium carbonate (Na₂CO₃) is a primary standard. When 0.364 grams of the substance is placed in a conical flask, then 20.00 cm³ of sulphuric acid (H₂SO₄) solution is required to reach the end point of the titration. What is the concentration in mol·dm⁻³ of the sulphuric acid solution? [Give the answer to 3 decimal places. Do not type in the unit. Use a decimal point.] *
The molar conductivities at infinite dilution of aqueous solutions of NH4Cl, NaCl, and NaOH are, respectively, 130, 108.6, and 216.5 S cm2 mol-1 at 18°C. The specific conductivity of a 0.01 M solution of ammonia at the same temperature is 9.6 x 10-5 [S cm-1] and the ion product of water is 0.59 x 1014. Determine: • The concentration of NH4+ ions in the ammonia solution. • The pH of the ammonia solution.
a. Ethanol vapours were allowed to completely fill a large jug with a volume of 15.5L. The ethanol was burned yielding 5.5mL of pure liquid water in the bottom of the jug at the end of the reaction. C2H5OH + 3 O2 ? 2 CO2 + 3 H20 If the room temperature was 21.5 oC and the pressure was 0.996atm, calculate the percentage yield of the water gathered in the jug. b. A 10.0 mL sample of sulfuric acid with an unknown concentration was titrated with 3.5 x 10-4 mol/L NaOH. If 20.4mL of the sodium hydroxide was required to completely neutralize the acid, determine the concentration of the sulfuric acid in the sample. Then, determine the original pH of the sulfuric acid sample
Nagyung wanted to determine the heat of dissolution for potassium chlorate (KClO3, MW: 122.55 g/mol) in water. He measured 10 grams of KClO3 and dissolved it in a calorimeter containing 250 g of water. The temperature drop was 3.5 K. What is qH2O? WHat is qrxn? WhaT IS THE change of dissolution of reaction? is the reaction exothermic or endothermic?
Laura and Sebastian create an aqueous solution of Ba(OH)2 by pipetting 25.00 mL of 0.0970 M Ba(NO3)2 into an Erlenmeyer flask and that contains 25.00 mL of 0.105 M KOH. a) Calculate the molar concentrations of Ba2+(aq) and OH1-(aq) in their 50.00 mL solution. b) Use the molar concentrations of Ba2+(aq) and OH1-(aq) as determined above and the Ksp to show why a precipitate does not form. You must include a calculation as part of your answer. The value of Ksp for Ba(OH)2, is 5.0 x 10-3. c) Laura adds solid KOH to their solution of Ba(OH)2 until the hydroxide concentration, [OH1-], becomes 0.200 M. Assuming that the volume of the solution does not change, does the molar concentrations of Ba2+(aq) increase, decrease or remain the same? justify your answer.
To compute the solubility product (Ksp) of barium nitrate (Ba(NO3)2), an excess amount of Ba(NO3)2 was added to 2 liters of water at 25 degrees celcius until the solution is saturated. Ba(NO3)2 is only slightly soluble in water. It was observed in their experiments that the solution boils at 100.15 K. Barium nitrate dissociates via the process: ?a(NO3)2(s) ⇄ Ba2+(aq) + 2NO3- (aq) Ksp = [Ba2+][NO3-]2 What is the solubility product Ksp and vapor pressure of the solution?
The solubility of borax, which is made up of sodium tetraborate (Na2B4O5(OH)4 8H2O), was analyzed. The dissolution of borax is: Na2B4O5(OH)4 • 8H2O(s) ⇌ 2 Na+(aq) + B4O5(OH)42–(aq) + 8 H2O(l) A 50 mL saturated solution was prepared. After filtration of solution, 5 mL aliquot was transferred to a flask and titrated using 0.432 M HCl. The endpoint was found to be 4.73 mL of the titrant. Tetraborate anion (B4O5(OH)42-) is a weak base which reacts with HCl like the following reaction: B4O5(OH)42–(aq) + 2 H+(aq) + 3 H2O(l) ⇌ 4 H3BO3(aq) What is Ksp expression for the dissolution? What is the tetraborate ions concentration in the filtrate? What is the molar solubility and Ksp of borax if the titration was done at room temperature (298 K)?
2 what is the purpose of BSC Level 1 & 2, proper layout, performance, and its application in biosafety assessment
Which of these types of coprecipitation happens with greater probability when the particle growth of a single crystal happens very quickly, allowing a contaminant to be trapped within a particle? Mixed crystal formation Occlusion Surface adsorption Mechanical entrapment
You are supplied with the following: / Jy word voorsien van die volgende: NaCl(Mr= 58,443 g /mol) 2.5MTris-Cl, pH 8 solution /oplossing (1 Litre) EDTA,natriumsout(Mr= 380,2g/mol) 10% sodium dodecyl sulphate solution / natriumdodecyl sulfaat oplossing Proteïnase K solution / oplossing (50 mg dissolved / opgelos in 1 ml ddH2O) You need a digestion buffer consisting of the following: / Jy moet 'n verteringsbuffer op maak wat uit die volgende bestaan: 15m M NaCl 75 mM Tris-Cl,pH 8 16 mM EDTA,pH 8 0.8% sodium sulphate / natrium dodecyl sulfaat 0,75 mg/ml proteïnase K How will you prepare 500 ml of the digestion buffer? Show all your steps and calculations. Remember to explain exactly how you will make it up.
If a syrup containing 65% (W/V) of sucrose is evaporated to 85% of its volume, what percentage strength (W/V) of sucrose will it contain?