Exam 7: Acids and Bases

Joshua has had high blood pressure for a number of years. At Joshua's last checkup, his doctor orders tests to measure the amount of creatinine in Joshua's blood and urine. Creatinine is a compound that forms whenever muscles break down creatine, a chemical that helps supply energy for muscle contractions. a.) Does everyone have creatine in their circulating blood? b.) Does everyone secrete creatinine in their urine? Why or why not?

The following is an accurate description of the ionization of HBr in water.

Which of the following is excreted by the kidneys to regulate the effect of excess protein in the diet?

Which of the following is the conjugate acid of ammonia, NH₃?

Consider the image which depicts the reaction between CH₃COOH and H₂O. Reactants: Products: If the composition of the equilibrium mixture is as represented below CH₃COOH is classified as

Which of the following solutions can function as a buffer?

Human blood contains which of the following buffers?

The buffer solution in the flask was prepared using one of the substances shown below. citric acid (pK_a 3.08) NaH₂PO₄ (pK_a 7.21) NH₄Cl (pK_a 9.25) Using the pH meter and solution shown in the image below, complete the following statements using one of the terms below. increase decrease remain constant citric acid NaH₂PO₄ NH₄Cl -The buffer solution in the beaker could be prepared using__________.

Using the above table, fill in the blank with the appropriate integer (1 ,2, 3,...) indicating the buffer and/or the letter indicating the formula below. -In Buffer 2,_________________________ would react with added acid.

Which of the following is most likely to be a base?

For a healthy individual, the pH of the blood in the veins is lower than in the arteries.

Metabolic acidosis resulting from vigorous exercise is associated with increased production of which of the following?

An aqueous solution contains a [H₃O⁺] that is 1.0 × 10^-3 M. What is the [OH^-] of this solution?

Ascorbic acid (Vitamin C), H₂C₆H₆O₆, has a pK_a of 4.10. A solution is 0.10 M in ascorbic acid and 0.20 M in sodium ascorbate, NaHC₆H₆O₆. What is the approximate pH of the solution?

The following reaction represents the self-ionization of ammonia (NH₃). NH₃(aq) + NH₃(aq) NH₂^-(aq) + NH₄⁺(aq) amide ammonium Fill in the blanks with the appropriate terms from those listed below. ammonia ammonium amide -In the reverse reaction, __________________________ion functions as an acid.

Which of the following is most likely to be a salt?

Adipic acid has the formula given below. Thus substance would be classified as amphiprotic.

Both the kidneys and the carbon dioxide-carbonic acid cycle help regulate blood pH.

A solution of KF in water will be

Consider the following three buffer reactions. Buffer 1: protein-H⁺ and protein Buffer 2: H₂CO₃ and HCO₃^- Buffer 3: H₂PO₄^- and HPO₄^2- Fill in the blank with the appropriate integer (1, 2, or 3) to indicate the buffer system described. -Buffer__________________is found in both plasma and red blood cells.