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
Airida [17]
3 years ago
10

Now we need to prepare a buffer that has a pH of 7.4. We need this specific pH to

Biology
1 answer:
Anestetic [448]3 years ago
8 0

Answer:

b) By mixing weak base with its conjugate acid and then adjusting the pH with strong  acid.

Explanation:

Hello,

In this case, considering that the buffer required a pH greater than 7 where the basic conditions are present, we need a weak base and its conjugate base in order to assure such pH greater than 7. Moreover, by using a strong acid, we can gently add it in order to decrease the pH up to 7.4 via a properly measured neutralization of the necessary moles of base up to a hydrogen concentration of 3.98x10⁻⁸ (pH). Therefore, answer is b) By mixing weak base with its conjugate acid and then adjusting the pH with strong  acid.

Best regards.

You might be interested in
Which of the following processes does NOT return carbon dioxide to the atmosphere?
mel-nik [20]

Answer:

B) Photosynthesis By Producers.

Explanation:

Plants are autotrophs, this means that they are capable of nourishing themselves from inorganic substances. This process is called photosynthesis and occurs in chloroplasts. In addition to the sun's rays, carbon dioxide and chlorophyll, water is one of the main elements to carry out this process. The product of photosynthesis are carbohydrates and oxygen.

6 0
3 years ago
Which sequence represents a correct size ranking of taxonomic categories, from the smallest to the largest? species, genus, fami
den301095 [7]
The first one is correct.  Please mark Brainliest!!!
7 0
3 years ago
Read 2 more answers
Which group of plants were the first to adapt to life on land?
Sophie [7]

Answer:

algae they first evolved in warer

5 0
3 years ago
Read 2 more answers
Which factor determines whether a molecule can cross a cell membrane
Marizza181 [45]
  <span>if a molecule is too large it cannot pass. also it depends on the concentration of a specific substance inside the cell. similarly, if a molecule is polar it cannot penetrate the phospholipid bilayer. 

there are proteins that work as channels and pumps that allow these molecules to pass

</span>
6 0
3 years ago
Read 2 more answers
Which among the choice below is NOT a goal of ASEAN members?
kozerog [31]
"Provide opportunities for increased trade with the United States" is the one among the following choices given in the question that is not <span>a goal of ASEAN members. The correct option among all the options that are given in the question is the third option or option "C". I hope the answer has helped you.</span>
5 0
3 years ago
Read 2 more answers
Other questions:
  • consider their functional differences why do you think the walls of arteries are proportionately thicker than those of the corre
    14·1 answer
  • Packet of solar energy
    8·1 answer
  • 5) If the DNA sequence is TTGGCGAGT explain everything that
    5·1 answer
  • What do you think Earth's surface would be like if the Earth did not have an atmosphere? Explain your reasoning
    9·1 answer
  • If an element contains six electrons, how many will be placed in the second valence shell?
    15·2 answers
  • Which of the following genotypes is homozygous dominant?
    7·1 answer
  • describe the changes take place in the skin of a person when the person walks from a cold room into a warmer outside​
    5·1 answer
  • Which resources are renewable and which are non renewable?
    11·2 answers
  • Hey i don’t understand this , i need help
    5·2 answers
  • Genetic modification of food crops is considered controversial because
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!