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Spectrophotometric properties of a particular indicator are given below.
A solution with a volume of 20.0 mL containing 1.40 times 10^-5 M indicator plus 0.050 M benzene-1, 2, 3-tricarboxylic acid (pKa1 = 2.86, pKa2 = 4.30, pKa3 = 6.28) was treated with 20.0 ml. of aqueous KOH. The resulting solution had an absorbance at 604 nm of 0.118 in a 1.00 cm cell. Calculate the molarity of the KOH solution.
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Spectrophotometric properties of a particular indicator are given below. A solution with a volume of 20.0 mL containing 1.40 times 10^-5 M indicator plus 0.050 M benzene-1, 2, 3-tricarboxylic acid was treated with 20.0 ml. of aqueous KOH. The resulting solution had an absorbance at 604 nm of 0.148 in a 1.00 cm cell. Calculate the molarity of the KOH solution.
How much volume of a 0.102 M NaOH solution must be added to 25.00 ml of a 0.075 M solution of benzene-1,2,3-tricarboxylic acid to obtain a pH equal to 4.80? pKa values: pKa1 = 2.86, pka2 = 4.30 and pka3 = 6.28.
Benzene-1,2,3-tricarboxylic acid (C6H3 (CO2H) 3) is a three-protic, water-soluble carboxylic acid with the following pKa values: pKa1 = 2.86, pka2 = 4.30 and pka3 = 6.28. What will be the pH of a 0.075 M solution of this treprotic carboxylic acid?
Benzene-1,2,3-tricarboxylic acid (C6H3 (CO2H) 3) is a three-protic, water-soluble carboxylic acid with the following pKa values: pKa1 = 2.86, pka2 = 4.30 and pka3 = 6.28. What will be the pH of a 0.075 M solution of this treprotic carboxylic acid?
4.30. Using solubility rules, predict the solubility in water of the following ionic compounds. a. AI(OH) b. CaN C. NH4CI d. KOH 4.32. Using solubility rules, decide whether the following ionic solids are soluble or insoluble in water. If they are soluble, write the chemical equation for dissolving in water and indicate what ions you would expect to be present in solution. (NE SO b. BaCO c. Pb(NOs)2 d. Ca(OH) 4.34. Write net ionic equations for the following molecular equations....
Titration: Acids and Bases 2. How can you determine which acid is diprotic? 3. using the answers to questions one and two, which acid is diprotic? 4. Which base has more hydroxide ions per molecule? Acid Volume Base Base Initial Volume (mL) Base Final Volume (mL) Volume of Base Used (mL) Acid: Base Ratio Acid 1 20 mL Base 1 50 mL 34.5 15.5 4:3 Acid 2 20 mL Base 1 Acid 1 20 mL Base 2 Acid 2 20...