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8. The normal pH of human blood is about 7.4. The carbonate buffer system in the blood uses the following reaction:...
Carbonate buffers are important in regulating the pH of blood at 7.40. If the carbonic acid...
Carbonate buffers are important in regulating the pH of blood at 7.40. If the carbonic acid concentration in a sample of blood is 0.0010 M, determine the bicarbonate ion concentration required to buffer the pH of blood at pH = 7.40. H2CO3(aq) = HCO3- (aq) + H+ (aq) Ka, = 4.3 x 10-7 27 Concentration =
8. Human blood contains two buffer systems, one based on phosphate species and one on carbonate...
8. Human blood contains two buffer systems, one based on phosphate species and one on carbonate species. At the temperature of human blood, the K, values for phosphoric acid are 1.3x10,2.3x10 and 6x10-12, respectively. The Ka values for carbonic acid are 8x10-7 and 1.6x10-10 a. If blood has a normal pH of 7.4, draw the principle phosphate and carbonate species present? b. What is the ratio between the two phosphate species?
One of the most important buffering systems in the biological realm is the carbonic acid (H2CO3)/carbonate...
One of the most important buffering systems in the biological realm is the carbonic acid (H2CO3)/carbonate ion (HCO3- ) system that maintains the pH of blood plasma to a relatively constant value. In blood at 37°C, the Ka of carbonic acid is 8x10-8. Suppose that the concentrations of the buffer components in the blood plasma are: [HCO3-] = 0.24 M and [H2CO3] = .12 M. Calculate the pH of blood.
The pH of blood plasma is 7.40. The principal buffer system is HCO3?/H2CO3. Calculate the ratio...
The pH of blood plasma is 7.40. The principal buffer system is HCO3?/H2CO3. Calculate the ratio [HCO3?]/[H2CO3] in blood plasma. (Ka of H2CO3, carbonic acid, is 4.5 × 10?7) Enter your answer in the provided box.
the Ka for this reaction is 7.94 x 10^-7. The normal pH of the blood is...
the
Ka for this reaction is 7.94 x 10^-7.
The normal pH of the blood is 7.40.
The acid neutralization equation is HCO3 + H3O ---> H2CO3 +
H2O.
(3 points) Excess blood acid is produced by diabetes and by anaerobic respiration after severe burns. The body employs both the carbonate buffer action and increased breathing rates to lower the blood acid level. Calculate the resulting blood pH if the blood acid level suddenly increases by 10.0 mM of H30*....
2. Blood is buffered using a bicarbonate system primarily to accommodate the formation of CO2 in...
2. Blood is buffered using a bicarbonate system primarily to accommodate the formation of CO2 in the tissues. The overall pK for the reaction below is 6.35: CO2 + H2O H2CO3 H+ + HCO3 During acidosis, treatment can consist of IV administration of NaHC03. If the pH of blood is typically 7.4, and the total concentration of carbonic acid/ bicarb is 0.05M, what is the concentration of conjugate base and acid in blood?
(a) Carbonate buffers are important in regulating the pH of blood at 7.40. what is the...
(a) Carbonate buffers are important in regulating the pH of blood at 7.40. what is the concentration ratio of CO2 (usually written H2CO3) to HCO3-in blood at pH = 7.40? H2CO3(aq)-HCO3-(aq) + H+(aq) Ka = 4.3 × 10-7 [H2CO3] / [HCO3-]- (b) Phosphate buffers are important in regulating the pH of intracellular fluids at pH values generally between 7.1 and 7.2. What is the concentration ratio of H2Po4 to HPO2 in intracellular fluid at pH = 7.15? H2PO4(aq)HPO42(aq)H(aq) Ka =...
21. What are the characteristics of the carbonic acid-bicarbonate buffer system (select all that apply? a...
21. What are the characteristics of the carbonic acid-bicarbonate buffer system (select all that apply? a CO2 is eliminated by the lungs b. Neutralizes HCl acid to yield carbonic acid and salt c. H2CO3 formed by neutralization dissociates into H2O and CO2 d. Shifts H+ in and out of cell in exchange for other cations such as potassium and sodium e. Free basic radicals dissociate into ammonia and OH-, which combines with Ho to form water 22. What are characteristics...
Buffers are common (and extremely important) in biological systems, including in human body. One of the...
Buffers are common (and extremely important) in biological systems, including in human body. One of the most important biological buffers in human blood is the buffer established between carbonic acid and bicarbonate ion (H2CO3/HCO3–). At 25 oC, H2CO3 has a Ka1 of 4.45x10–7 and a Ka2 of 4.69x10–11. a. Will Ka1 or Ka2 of H2CO3 be instrumental in determining blood pH? Briefly explain your reasoning. b. Let’s pretend that there was an equal ratio of carbonic acid to bicarbonate (note...
8) The pH of human blood is primarily maintained at 7.4 by A) ATP B) a...
8) The pH of human blood is primarily maintained at 7.4 by A) ATP B) a bicarbonate buffer system. C) carbon dioxide-carbonic acid buffer systems. D) B and C. E) A, B and C. 9) The H+ (or H30+) in cells is the same concentration as that of undissociated water. A) Trure B) False 10) A pharmaceutical company hires a chemist to analyze the purity of the water being used in its drug preparations. If the water is pure, the...
Carbonate buffers are important in regulating the pH of blood at 7.40. If the carbonic acid concentration in a sample of blood is 0.0010 M, determine the bicarbonate ion concentration required to buffer the pH of blood at pH = 7.40. H2CO3(aq) = HCO3- (aq) + H+ (aq) Ka, = 4.3 x 10-7 27 Concentration =
8. Human blood contains two buffer systems, one based on phosphate species and one on carbonate species. At the temperature of human blood, the K, values for phosphoric acid are 1.3x10,2.3x10 and 6x10-12, respectively. The Ka values for carbonic acid are 8x10-7 and 1.6x10-10 a. If blood has a normal pH of 7.4, draw the principle phosphate and carbonate species present? b. What is the ratio between the two phosphate species?
the
Ka for this reaction is 7.94 x 10^-7.
The normal pH of the blood is 7.40.
The acid neutralization equation is HCO3 + H3O ---> H2CO3 +
H2O.
(3 points) Excess blood acid is produced by diabetes and by anaerobic respiration after severe burns. The body employs both the carbonate buffer action and increased breathing rates to lower the blood acid level. Calculate the resulting blood pH if the blood acid level suddenly increases by 10.0 mM of H30*....
(a) Carbonate buffers are important in regulating the pH of blood at 7.40. what is the concentration ratio of CO2 (usually written H2CO3) to HCO3-in blood at pH = 7.40? H2CO3(aq)-HCO3-(aq) + H+(aq) Ka = 4.3 × 10-7 [H2CO3] / [HCO3-]- (b) Phosphate buffers are important in regulating the pH of intracellular fluids at pH values generally between 7.1 and 7.2. What is the concentration ratio of H2Po4 to HPO2 in intracellular fluid at pH = 7.15? H2PO4(aq)HPO42(aq)H(aq) Ka =...
21. What are the characteristics of the carbonic acid-bicarbonate buffer system (select all that apply? a CO2 is eliminated by the lungs b. Neutralizes HCl acid to yield carbonic acid and salt c. H2CO3 formed by neutralization dissociates into H2O and CO2 d. Shifts H+ in and out of cell in exchange for other cations such as potassium and sodium e. Free basic radicals dissociate into ammonia and OH-, which combines with Ho to form water 22. What are characteristics...
8) The pH of human blood is primarily maintained at 7.4 by A) ATP B) a bicarbonate buffer system. C) carbon dioxide-carbonic acid buffer systems. D) B and C. E) A, B and C. 9) The H+ (or H30+) in cells is the same concentration as that of undissociated water. A) Trure B) False 10) A pharmaceutical company hires a chemist to analyze the purity of the water being used in its drug preparations. If the water is pure, the...
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