2. Using the following set of reactions, generate a log Al vs. pH diagram depicting the solubility of gibbsite,Al(OH)3(am).Al(OH)3(am) + 3H+ → A1³+Al3+ + H₂OA13++ 2H2OA13+ + 3H2OA13+ + 4H2O← → AIOH2++ 3H2O+ H← → Al(OH)2++ 2H+← → Al(OH)3(aq)← → Al(OH)4+3H++ 4H+log Ksp.Al(OH)3 = 10.38log K1,OH -4.99log K2,OH-10.1log K3,OH -16.0log K4,OH -23.0Assume this mineral controls the solubility of Al in a coagulation-flocculation drinking water plant. Ifthe system is dosed with alum, aluminum sulfate(s), at a concentration equivalent to 2.7 mg Al/L andoperated at pH 7.0, what is the minimum solubility of Al in equilibrium with gibbsite? Report youranswer as (mg Al/L). State any assumptions.

Calculation step by step: Determine the pH of the solution:We're given that the system is dosed with…

Answered: 2. Using the following set of…

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter15: Additional Aqueous Equilibria

Section: Chapter Questions

Problem 84QRT

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7.7 g of citric acid (MM = 192.1 g/mol) can be titrated with NaOH according to the following balanced chemical equation. H3C6H5O7 (aq) + NaOH(aq) → H2O(l) + Na H2C6H5O7(aq) what would the curve for the titration of the neutralization of the three hydrogens of this acid with NaOH look like?
Sodium lactate is the sodium salt of lactic acid.a) Use Acid-Base Properties of Salt Solutions, to explain if sodium lactate, NaC3H5O3(aq), is acidic or basic?b) Use ICE table to determine what is the pH of a solution that contains 0.75mol/L lactic acid, HC3H5O3(aq) (Ka = 1.4 x 10-4), and 0.25mol/L sodium lactate, NaC3H5O3(aq) ?
You prepare a standard NaOH solution for the laboratory, using potassium hydrogen phthalate (KHC₈H₄O₄, abbreviated KHP) as the primary standard. KHP (molar mass = 204.22 g/mol) has one acidic hydrogen. It took 31.55 mL of the NaOH solution to titrate (react exactly with) 0.750 g KHP. You then use the standard base solution to determine the amount of ascorbic acid in a 500.0 mg tablet of vitamin C. Ascorbic acid (HC₆H₇O₆, molar mass 176.12 g/mol) also has one acidic hydrogen, and is usually mixed with some filler in preparing the tablets. It requires 17.54 mL of the NaOH to titrate (react exactly with) the ascorbic acid found in one 500.0 mg tablet. What is the percent vitamin C by mass in the tablet?
Determine if the following salt is neutral, acidic or basic. If acidic or basic, write the appropriate equilibrium equation for the acid or base that exists when the salt is dissolved in aqueous solution. If neutral, simply write only NR. KC3H;O3 O4- 3- O2+ 3+ D 4+ 1 2 3 4 6. 7 8 9 1 3 4 6. 7 (s) (1) (g) ||(aq) + NR OH C H H30* H20 K Reset • x H20 Delete 1L LO 2. 2.
Just b (i-ii)
For the reaction of hydrazine (N,H4) in water, H2NNH2 (aq) + H2O(1) = H2NNH3+ (aq) + OH (ag) K, is 3.0 x 10. Calculate the concentrations of all species and the pH of a 2.9-M solution of hydrazine in water. [H, NNH2 H2NNH3+ =| [OH ]=| =[_HO] [H*] =[ pH =| %3D
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The equilibrium expression for any weak acid can be written as HA (aq) + H20 (1) = A- (aq) + H;O+ (aq) 1. Write the K value expression based on the equation above (remember that pure liquids are not included in the K expression). This is given the special symbol Ka. 2. In this experiment, you will be using pH to find [H3O+]. The relationship is [H3O*] = 10-PH . For a pH of 7.4, find the [H3O+].
ion The following table shows data from the titration of four 25.0 mL samples of a perchloric acid solution, HCIO4(aq), using a 0.225 mol/L sodium hydroxide standard solution. Bromothymol blue is used as an indicator to detect when the endpoint is reached. Titration of 25.0 mL of HCIO4 with 0.225 mol/L NaOH(aq) final burette reading (mL) initial burette reading (mL) volume of NaOH(aq) added (mL) colour at endpoint Trial 1 Use the data in the table below to answer the next two questions. Trial 2 Trial 3 Trial 4 Trial mL . . . mL mL 1 mL 19.9 0.4 2 Using the chart above, provide the volume of NaOH added for each of the trials. 38.8 3 19.3 19.9 0.2 4 38.4 19.3 blue green green green DELL
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Palmitic Acid, CH3(CH2)14COOH, found in both bacon fat and many soaps. Palmitic acid partially ionizes in water. Write a balanced chemical reaction for the dissociation of palmitic acid into its conjugate base and hydrogen ion. Write an expression for the equilibrium constant for palmitic acid. The equilibrium concentrations are [CH3(CH2)14COOH] = 0.1 M and [H+] = [CH3COO-] = 0.0133352 M. Calculate the equilibrium constant of ionization KA. Calculate the pKA of palmitic acid. Draw (by hand) the titration curve for palmitic acid. Please label your axes appropriately.

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