Use the graph below to answer the following questions:     What type of titration does the graph represent? 1. Strong acid/strong base titration 2. Weak acid/strong base titration 3. Weak base/strong acid titration What is the pKa? 4. 5.6 5. 9.9 6. 1.70 What is the identity of the original acid or base before titration? 7. HCl 8. NaOH 9. Ethylene diamine 10. Benzoic acid

Use the information below to predict the characteristics of an equilibrium reaction 2A (aq) + 2Z (aq) ⇌ 2AZ (aq)        ΔG0 = -11.5 kJ/mol The value of the equilibrium constant for the reaction will be 1. 1.04 x 102 2. 9.64 x 10-3 3. 4.38 x 104 Which indicates that 4. The reaction is spontaneous in the forward direction 5. The reaction is spontaneous in the reverse direction And therefore 6. The concentration of reactants will be higher than concentration of products at equilibrium 7. The concentration of products will be higher than the concentration of reactants at equilibrium

Determine if the following statements are correct regarding the graph of rate data above? The half-life, t1/2, is independent of the initial concentration [1] The rate constant, k, would have units of M-1 s-1 [2] Doubling the concentration of A would not change the rate of the reaction. [3]

Below is a representation of an acid in water.  Which of the following statements is/are correct about the following image: The acid could be acetic acid The percent ionization of the acid would be 100% The acid could be bromic acid

Determine which of the following statements are True or False about 500.0 mL of buffer consisting of 2.1 M pyruvic acid (HC3H3O3) and 3.6 M sodium pyruvate (NaC3H3O3): The pH slightly decreases when 25.0 mL of 0.50 M hydrochloric acid is added to the buffer but the buffer is still effective [1] 0.250 moles of sodium hydroxide will be neutralized by pyruvic acid and the buffer is still effective [2] 0.125 moles of hydrochloric acid will be neutralized by pyruvic acid and the buffer is still effective [3]

Which of the species below is/are a Lewis acid

What is the molar solubility of lead (II) chloride (PbCl2), the Ksp is 1.7 x 10-5?

A 198.6 mL sample of 0.318 M potassium hydroxide, KOH is being titrated against 0.548 M selenic acid, H2SeO4. Determine the volume of H2SeO4 needed to reach the equivalence point.

A solution is created by dissolving 0.0362 g of Mg(OH)2 in 400.0 mL solution. Determine the pH of this solution.

For this question you need to do the work on Honorlock then show the work to the camera.  Immediately Go to Exam 3 Free Response Upload Spring 2025 and submit your work I will look at the time between ending this exam and uploading your work. You will not see this question in the upload so do not submit until you are done with this question.  For Full Credit show all your work including reactions, equations, and math. A 0.0125 M solution of a weak acid (HA) has a pH of 2.48. Calculate the acid ionization constant (Ka) for the acid.