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
olya-2409 [2.1K]
3 years ago
8

The pH of blood is 7.35. It is maintained in part by the buffer system composed of carbonic acid (H2CO3) and the bicarbonate (hy

drogen carbonate, HCO3-) ion.What is the ratio of [bicarbonate]/[carbonic acid] at this pH? For carbonic acid, Ka1 = 4.2 10-7.a) [bicarbonae]/[carbonic acid] = 0.11.b) [bicarbonate]/[carbonic acid] = 9.4.c) [bicarbonate]/[carbonic acid] = 0.38.d) None of the above ratios is correct.e) [bicarbonate]/[carbonic acid] = 2.65.
Chemistry
1 answer:
algol [13]3 years ago
8 0

Answer:

b) [bicarbonate]/[carbonic acid] = 9.4

Explanation:

The pH of a buffer system is given by the Henderson-Hasselbach equation:

  • pH = pKa + log ([bicarbonate] / [carbonic acid])

Where pka = -log (Ka) = -log(4.2x10⁻⁷) = 6.38

Now we <u>solve for [bicarbonate] / [carbonic acid]</u>:

  • 7.35 = 6.38 + log ([bicarbonate] / [carbonic acid])
  • 0.97 = log ([bicarbonate] / [carbonic acid])
  • 10^{0.97} = [bicarbonate] / [carbonic acid]
  • [bicarbonate] / [carbonic acid] = 9.33 ≈ 9.4

So the answer is b).

You might be interested in
A "half-reaction” is one which may:
DaniilM [7]

Answer:

d

Explanation:

8 0
3 years ago
Depending on the reaction, we could monitor the progress towards equilibrium by observing __________.
Alex Ar [27]

Depending on the reaction, we could monitor the progress towards equilibrium by observing the concentration of the reactant and the product are equal with time.

<h3>What is equilibrium?</h3>

Equilibrium is a stage of reaction in which the rate of forwarding reaction is equal to the rate of backward reaction and equilibrium is stable at the reversible state of mode.

The concentration of reactant and product must also be equal or the same as the time then only it can be an equilibrium reaction.

Therefore equilibrium depends on the reaction, the concentration of the reactant and the product are equal with time.

Learn more about equilibrium, here:

brainly.com/question/13463225

#SPJ4

4 0
1 year ago
Describe how the height of the tides changes from Monday to Thursday.
adoni [48]
One of the results is that the moon is near the earth and the other one, the oceans tide. Even though the earth can hold any object within
ts proximity, the ocean is partly attracted due to its liquid property. At night, the ocean tends to be attracted to the moon by creating a bulge and assigning it as ‘high tide’. This is due to the strong gravitational pull of th moon to the earth.

I hope this helps!
This might be right..
5 0
3 years ago
Draw the structure for the ring compounds with formulas C6H12 and C6H6
GenaCL600 [577]
The first compound C6H12 is cyclohexane and the other compound C6H6 is benzene. They are both aromatic compounds. Cyclohexane does not have double bonds in its ring while benzene has three double bonds in its ring. This is why the formula for cyclohexane contains 12 carbon atoms while benzene only has 6. 
5 0
2 years ago
In which of the following is the number of electrons the ion contains given correctly?
Agata [3.3K]

B. Cl- has 17 electrons.

7 0
2 years ago
Read 2 more answers
Other questions:
  • How reactive is an atom of Sodium(Na) and why? Question 1 options: Sodium (Na) is very reactive because it does not have a full
    15·2 answers
  • I need help on this someone please help
    13·1 answer
  • 2Mg + O2 mc019-1.jpg 2MgO
    13·2 answers
  • What is the word equation for calcium and hydrochloric acid?
    11·1 answer
  • What mass of solid CaSO4 would need to be added in order to make 1.2L of a 0.75M solution?
    5·1 answer
  • Why is platinum metal preferred to other metals for the flame test​
    8·2 answers
  • How many grams of sodium hydroxide are present in 250.0 mL of a 0.300 M NaOH solution?
    6·1 answer
  • If you were a scientist investigating the effects of antioxidants in foods, what would you test and why?
    9·1 answer
  • 1. The following results were obtained in analysis of iron ore for iron: 34.79%, 34.86%, 34.80%, 34.53% and 34.76% Calculate the
    13·1 answer
  • During what change is heat absorbed?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!