Please correct answer and don't use hand raiting Use an Excel spreadsheet to calculate alpha values for the following diprotic acid every 1.0 pH units from pH 0.0 to 10.0. Reportalpha values for the selected pH values.tartaric acid (Ka1 = 9.20 x 10, K2 = 4.31 × 10-5)(Use a spreadsheet to complete this question.)a. Alpha values for pH values of 2.0:a0=a₁ =02 =Alpha values for pH values of 5.0:0x0 =a=02=Alpha values for pH values of 8.0;00=a₁ =02 =b. In your Excel document, plot the distribution diagram. Which of the following best matches your plot?1.2Alpha value0.8-0.6-044

Step 1:To calculate the alpha values for tartaric acid at pH 2, 5, and 8, we'll use the…

Answered: Use an Excel spreadsheet to calculate…

General, Organic, and Biological Chemistry

7th Edition

ISBN:9781285853918

Author:H. Stephen Stoker

Publisher:H. Stephen Stoker

Chapter10: Acids, Bases, And Salts

Section: Chapter Questions

Problem 10.145EP

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Methylamine, CH3NH2, has a Kb of 4.4 x 10-4. What is the pH of a 0.54 M solution of methylamine? Your answer should be to two places past the decimal. Calculate the pH of a 0.21 M solution of hydrocyanic acid (HCN), which has a pKa of 9.31. Your answer should have 3 significant figures (i.e. 9.99).
Identify the species represented by each curve in the fractional composition diagram of a tetraprotic acid (H₂A) with pK, values of 2.00, 5.00, 7.00, and 10.00. Fractional composition #H₂A = 1.00- 0.90- 0.80- 0.70- 0.60- 0.50- 0.40- 0.30. ₁+ = 0.20- 0.10- aH₂A = H₂A²- = aHA¹ = 0 Calculate the fraction of the tetraprotic acid in each of its forms at pH 4.90. H₂A™ H₂A¹- XXO 0.01 0.65 0 H₂A 0.32 0.02 HA¹ - 8 9 10 11 12 13 14 PH A+ Answer Bank 00
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For a weak acid with a pKa of 6.0, show how you would calculate the ration of acid to salt at pH 5.
Malic acid is a weak diprotic organic acid with Ka1 = 4.0 × 10-4 and Ka2 = 9.0 × 10-5.a Letting the symbol H2A represent malic acid, write the chemical equations that represent Ka1 and Ka2 . Write the chemical equation that represents Ka1 × Ka2. b Qualitatively describe the relative concentrations of H2A, HA-, A2-, and H3 O+ in a solution that is about one molar in malic acid.c Calculate the pH of a 0.0175 M malic acid solution and the equilibriumconcentration of [H2 A].d What is the A2- concentrationin in solutions b and c?
For a 6.60×10-2 M solution of H₂Se, calculate both the pH and the Se2- ion concentration. H₂Se + H₂0 HSe + H₂0 H30++ HSe Kal = 1.3x10-4 H3O+ + Se2- Ka2 = 1.0x10-11 pH = [Se2-] M
If the pKa of HCHO 2 is 5.74 and the pH of an HCHO 2/NaCHO 2 solution is 6.11, which of the following is TRUE? a [HCHO2] >> [NaCHO2] b [HCHO2] > [NaCHO2] c [HCHO2] < [NaCHO2] d [HCHO2] = [NaCHO2]
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If the concentration of an acid in solution is 2.2 times larger than the concentration of its conjugate base, and the pH of the solution is 3.5, what is the pKa of the acid? Include the answer to 3 significant figures
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