Hi, Dakoa v Sign Out I Review Constants | Perio Zn(NO3)2(aq) and LiS(aq) Express your answer as a net ionic equation. Identify all of the phases in your answer. Enter noreaction if no precipitate is formed. ΑΣφ Submit Previous Answers Request Answer Part B NagPO4(aq) and Zn(NO, )2(aq) Express your answer as a net ionic equation. Identify all of the phases in your answer. Enter noreaction if no precipitate is formed.

Hi, Dakoa v Sign Out I Review Constants | Perio Zn(NO3)2(aq) and LiS(aq) Express your answer as a net ionic equation. Identify all of the phases in your answer. Enter noreaction if no precipitate is formed. ΑΣφ Submit Previous Answers Request Answer Part B NagPO4(aq) and Zn(NO, )2(aq) Express your answer as a net ionic equation. Identify all of the phases in your answer. Enter noreaction if no precipitate is formed.

EBK A SMALL SCALE APPROACH TO ORGANIC L

4th Edition

ISBN:9781305446021

Author:Lampman

Publisher:Lampman

Chapter79: Solubility

Section: Chapter Questions

Problem 1P

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Two homogeneous solutions 1.5 x 10-2 M Pb(NO3)2 and 2.5 x 10-4 M (NH4)2SO4 are combined. Does PbSO4 (s) (Ksp = 1.8 x 10-7) precipitate from the solution? Please explain so I can understand- thank you!
Please answer this NEATLY, COMPLETELY, and CORRECTLY for an UPVOTE. From the stock solution (0.020 M), pipet 4.00 mL and dilute to 100.00 mL. From the diluted solution, pipet 0.00, 1.00, 1.50, 2.00, 2.50, 5.00 and 7.50 mL aliquots into 100 mL volumetric flasks. Dilute to mark. Determine the concentration of each standard solution and tabulate.
Consider the reaction of a 20.0 mL of 0.220 M C₅H₅NHCl (Ka = 5.9 x 10⁻⁶) with 12.0 mL of 0.219 M CsOH. Write the net ionic equation for the reaction that takes place. Be sure to include the proper phases for all species within the reaction.
Although other solvents are available, dichloromethane(CH₂Cl₂) is still often used to “decaffeinate” drinks because thesolubility of caffeine in CH₂Cl₂ is 8.35 times that in water.(a) A 100.0-mL sample of cola containing 10.0 mg of caffeine is extracted with 60.0 mL of CH₂Cl₂. What mass of caffeine re-mains in the aqueous phase? (b) A second identical cola sampleis extracted with two successive 30.0-mL portions of CH₂Cl₂.What mass of caffeine remains in the aqueous phase after each extraction? (c) Which approach extracts more caffeine?
To determine the fluoride content in an aqueous and chloride-containing preparation of ammonium fluoride, the following analysis was performed. 105.2 mg of the preparation was dissolved in 100.0 mL of water. Then a 300 mL 40 mM lead chloride solution was added, whereby all fluoride ions were precipitated out of the solution in the form of the sparingly soluble salt PbClF (s). The precipitate was separated and washed at 15 degrees with a lead fluoride chloride saturated solution and dried at 130 degrees. The precipitate weighed 651.3 mg. a) Calculate the fluoride content (as % by weight F) in the preparation.b) Determine the purity of the ammonium fluoride preparation
A chemist receive different mixtures for analysis with the statement that it contain NaOH, NaHCO3 , Na2CO3 or compatible mixtures of these substances together with the inert material. From the data given, identify the respective materials and calculate the percentage of each component. 1.000g samples and 0.2500 N HCl were used in all cases. Sample 1 With phenolphthalein as the indicator, 24.32 ml of HCl was used. A duplicate sample required 48.64 ml HCl using methyl orange as the indicator. Sample 2. With phenolphthalein as the indicator it uses 28.2 ml of HCl to make it colorless and added with methyl orange indicator and uses 11.3 ml of HCl to reach the end point.
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 soil
Use the information in the pictures if needed and solve for the unknown D. please type the answers because it is much easier for me to understand that way. Unknown D To the unknown mixture, 3 drops of 6 M HCl was added and no precipitate formed. To the liquid that was left, 3 drops of 0.10M (NH4)2SO4 was added and a precipitate formed. The precipitate was isolated by centrifuging and the liquid from the top decanted for further testing. To the decanted liquid, the solution was made basic and a few drops of (NH4)2C2O4 was added. No precipitate formed. The liquid was tested for Mg2+ and a bright blue jelly ppt formed. To the unknown, a separate NH4+ test was done and the litmus paper used to test the pH turned blue. To the unknown, a flame test was performed and the color emitted was a light purple-red. What ions are in the unknown? (Identify unknown ions and provide a brief summary) DO NOT SIMPLY RESTATE THE ABOVE OBSERVATIONS.
Table 1: Temp vs. solubility data of ammonium chloride. Test tube g NH4Cl/10 mL H2O Crystallization temp. (ºC) 1 1.0 g/10 mL H2O 10 oC 2 1.8 g/10 mL H2O 20 oC 3 2.9 g/10 mL H2O 40 oC 4 3.8 g/10 mL H2O 65 oC 5 4.4 g/10 mL H2O 95 oC Use the table to plot a solubility curve for ammonium chloride on the graph provided below. For the best fit line, use a smooth curve. "Mass of Solute per 100 mL of H2O," should be written on the y-axis (use increments of 2g for every box). "Temperature (°C)" should be written on the x-axis (use increments of 10 °C for every 2 boxes).
You are asked to create a 0.35 M solution of calcium chloride (CaCl2) using a 250.0 mL volumetric flask. a.You have two solvents, difluoromethane (CH2F2) and ethanol (C2H5OH) available to dissolve your CaCl2. Which solvent would be more appropriate to use? Justify your response in 2 sentences or less.
What is the primary standards and its amounts, and indicators used for the Volumetric Solution (VS): 1N Sulfuric acid? And why?
calculate the sulablity Iat 25 Celsius of Ni(OH)2 pure water and then .01 80 M NaOH solution. Ksp of Ni(OH)2 is 5.48x10^16 additional info in the picture