H2Co3+H2O ,--> HCO3-+H3o+. Explain how this buffer system resists the addition of an acid?
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H2Co3+H2O ,--> HCO3-+H3o+. Explain how this buffer system resists the addition of an acid?
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.
One common biological buffer is the carbonic acid (H2CO3) / bicarbonate (HCO3-) buffer. Which of the following statements describes what happens when a small amount of a strong acid is added to the buffer system: A. the amount of bicarbonate increases B. the amount of bicarbonate decreases C. the amount of carbonic acid increases D. the amount of carbonic acid decreases E. both b & c
Consider a solution consisting of the following two buffer systems: H2CO3 HCO3– + H+ pKa = 6.4 H2PO4– HPO42– + H+ pKa = 7.2 At pH 6.4, which one of the following is true of the relative amounts of acid and conjugate base present? ***Please explain why the right answer is right and why the other ones are wrong. a. [H2CO3] > [HCO3- ] and [H2PO4- ] > [HPO42- ] b. [HCO3- ] > [H2CO3] and [HPO42- ] > [H2PO4-...
Match the substance to the correct label for the following reaction: H2CO3 (aq) + H2O (l) ⇔ H3O+(aq) + HCO3−(aq) Question 5 options: 1234 H2O 1234 H2CO3 1234 HCO3- 1234 H3O+ 1. Acid 2. Base 3. Conjugate acid 4. Conjugate base
Identify acid, base, conjugate acid, and conjugate base in the following reaction: H2CO3(aq) + H2O(1) - HCO3- (aq) + H3O+(aq) H2CO3 is an acid, H2O is a conjugate acid, HCO3- is a base, and H3O+ is a conjugate base. H2CO3 is a conjugate acid, H2O is a conjugate base, HCO3- is a base, and H3O+ is an acid.H2CO3 is an acid, H2O is a conjugate base, HCO3- is a base, and H3O+ is a conjugate acid. H2CO3 is a conjugate acid, H2O is a base, HCO3- is...
HCO3- +
H2O
CO32- +
As drawn, the acid in the reaction is
(HCO3- ) and the base is (
H2O)
The conjugate acid is ( CO32- ) and the
conjugate base is (H3O+ )
b) If a solution has a H3O+ concentration
of 0.817 M, what is the pH? Provide your answer with 2 decimal
places (13.91)
can you please check my answers? Thanks!
Suppose a cat has 0.15mole of HCO3- and 0.15mole of H2CO3 in its bloodstream. How many grams of glycolic acid could be neutralized before the buffering system in the blood has reached buffer capacity?
3. a. Use the Henderson-Hasselbach equation to determine the ratio of HCO3- to H2CO3 in the patient’s blood 10 hours after aspirin ingestion. b. How does this compare to the ratio of HCO3- to H2CO3 in normal blood (indicate value used from the range given in the table). (pKa1=6.35). c. Can the H2CO3/HCO3- system serve as an effective buffer in this patient? Explain
A 100.00 mL buffer solution at pH 7.80 is prepared such that the [H2CO3] + [HCO3] = 1.000 M. Determine how much strong acid 1.00M HCI or strong base 1.000 M NaOH must be added to change the pH to 7.40. The step-wise acid dissociation constants for carbonic acid are Ka1= 4.2*10^-7 ; Ka2= 4.8*10^-11.
Consider the following buffer system: 0.0024 M H2CO3 and 0.024 M HCO3-. What is the pH of such a system (Kg = 4.3 x 10-7? Ca) pH = 7.37 b) pH = 7.00 c) pH = 5.36 Od) pH = 8.90 Question 6 (5 points) Water can act as a buffer system since it has hydroxide and hydronium ions both present at the same time. True False