1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ohaa [14]
3 years ago
13

Consider a solution consisting of the following two buffer systems:

Chemistry
1 answer:
vazorg [7]3 years ago
7 0

Answer:

Option (e) is correct

Explanation:

According to Henderson - hasel balch equation

For H₂CO₃ / HCO₃⁻

pH = pka + log\frac{[HCO^-_3]}{[H_2CO_3]} \\\\= 6.4 + log\frac{[HCO^-_3]}{[H_2CO_3]} -------(1)

For H₂PO₄⁻ / HPO₄²⁻

pH = pka + log\frac{[HPO_4^2^-]}{[H_2PO_4^-]} \\\\= 7.2 +  log\frac{[HPO_4^2^-]}{[H_2PO_4^-]}-----(2)

Now ph for buffer mixture is 6.4

pH = 6.4 in eqn(1) [HCO₃⁻]- [H₂CO₃]

pH = 6.4 in eqn(2) [H₂PO₄⁻] > [HPO₄²⁻]

Option (e) is correct

You might be interested in
Brownian motion is not observed in a mixture that includes two phases. Which best identifies the mixture? [A} a colloid
Hoochie [10]

b, a suspension

Hope this helped :)

3 0
3 years ago
Calculate the number of ATP generated from one saturated 10 ‑carbon fatty acid. Assume that each NADH molecule generates 2.5 ATP
larisa86 [58]

Answer:

Total ATP molecules produced = 66 molecules of ATP

Explanation:

A 10-carbon fatty acid when it has undergone complete oxidation will yield 5 acetyl-CoA molecules and 4 FADH₂ and 4 NADH molecules each. Each of the 5 acetyl-CoA molecules enters into the citric acid cycle and is completely oxidized to yield further ATP and  FADH₂ and NADH molecules.

The total yield of ATP in the various enzymatic step is calculated below:

Acyl-CoA dehydrodenase = 4 FADH₂

β-Hydroxyacyl-CoA dehydrogenase = 4 NADH

Isocitrate dehydrogenase = 5 NADH

α-Ketoglutarate dehydrogenase = 5 NADH

Succinyl-CoA synthase = 5 ATP (from substrate-level phosphorylation of GDP)

Succinate dehydrogenase = 5 FADH₂

Malate dehydrogenase = 5 NADH

Total ATP  from FADH₂ molecoles = 9 * 1.5 = 13.5

Total NADH molecules = 19 * 2.5 = 47.5

Total ATP molecules produced = 13.5 + 47.5 + 5

Total ATP molecules produced = 66 molecules of ATP

6 0
3 years ago
What is the stable ion of cesium
Sauron [17]

Answer:

Cesium has one valence electron that can be removed from itself resulting to its stable monatomic ion of Cs+ .

Explanation:

5 0
3 years ago
What did Lisa do wrong in regards to lab safety?
kondor19780726 [428]

Answer:she did not do it in the correct order

Explanation:

5 0
3 years ago
Draw line structures for the cis and trans configurations of CH3CH2CH=CHCH3.
myrzilka [38]

Answer:

See attached picture.

Explanation:

Hello,

In this case, on the attached picture you will find the required line structures for the cis and trans configurations of the given compound (2-pentene). Take into account for the cis that the adjacent carbons to those having the double bond remain in the same plane, whereas for the trans one, the adjacent carbons remain in a different plane.

Regards-

5 0
3 years ago
Other questions:
  • Which term best describes the role of hydrogen gas in the formation of water molecules?
    15·1 answer
  • Would it be C..? <br> More NO2 and SO2 would form..help..please and thank you
    9·1 answer
  • How many moles of glucose can be produced
    6·1 answer
  • A shorter electromagnetic wave is _____.
    12·1 answer
  • Calcium carbide, CaC2, reacts with water to form calcium hydroxide and the flammable gas ethyne (acetylene) in the reaction: Wha
    14·1 answer
  • (03.03 MC)
    6·1 answer
  • An unknown amount of mercury (II) oxide was decomposed in the lab. Mercury metal was formed and 5.20 L of oxygen was released at
    10·1 answer
  • ** WILL MARK BRAINLIEST **
    11·2 answers
  • Examples of renewable resources
    15·2 answers
  • What is the pressure of the air in a car tire (in psi) if it is 1.73 atm?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!