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emmainna [20.7K]
3 years ago
11

How erythrocytes act as acid-base buffer?? ASAP

Medicine
1 answer:
worty [1.4K]3 years ago
7 0

Answer:

Hemoglobin is an important intracellular protein buffer present inside the red blood cells (RBC). When the partial pressure of carbon dioxide (pCO2) is increased, it freely diffuses into the RBC where it reacts with water molecules to form carbonic acid which dissociates to form bicarbonate and hydrogen ions by the enzyme carbonic acid which dissociates to form bicarbonate and hydrogen ions by the enzyme carbonic anhydrase. Hydrogen ions liberated in this reaction are buffered by hemoglobin.

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10.0 g of table salt, NaCl, is dissolved in water to a total volume of 125.0 mL. What is the resulting molar concentration of th
marysya [2.9K]

Taking into account the definition of molarity, the molar concentration of the table salt is 1.368 \frac{moles}{liters}.

<h3>Definition of molarity</h3>

Molar concentration or molarity is a measure of the concentration of a solute in a solution and indicates the number of moles of solute that are dissolved in a given volume.

The molarity of a solution is calculated by dividing the moles of solute by the volume of the solution:

molarity=\frac{number of moles}{volume}

Molarity is expressed in units \frac{moles}{liters}.

<h3>Molar concentration of the table salt</h3>

In this case, you have:

  • number of moles= 10 g×\frac{1 mole}{58.45 g}= 0.171 moles [being 58.45\frac{g}{mole} the molar mass of NaCl]
  • volume= 125 mL= 0.125 L [being 1000 mL= 1 L]

Replacing in the definition of molarity:

molarity=\frac{0.171 moles}{0.125 L}

Solving:

<u><em>molarity= 1.368 </em></u>\frac{moles}{liters}

Finally, the molar concentration of the table salt is 1.368 \frac{moles}{liters}.

Learn more about molarity:

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#SPJ1

5 0
2 years ago
Which of the following statements describes a disadvantage of electronic medical records?
-Dominant- [34]

Answer:

the data is often incomplete

3 0
3 years ago
Active people need nutrient-dense foods such as _____ to supply vitamins, minerals, and phytochemicals. Group of answer choices
olganol [36]

Active people need nutrient-dense foods such as sweet potatoes.

Active people are those individuals that are involved in those physical activities that requires excess energy which must be gotten from the metabolic activities of the body cells.

These individuals need nutrient-dense foods such as sweet potatoes.

Nutrient-dense foods are those food products that contain the right proportion of nutrients, that is, they are rich in vitamins, minerals and other nutrients important for health (the phytochemicals).

Examples of nutrient-dense foods are the sweet potatoes and yogurt.

Therefore, active people need nutrient-dense foods such as sweet potatoes because it contains vitamins, minerals, and phytochemicals which is necessary for their health.

Learn more here:

brainly.com/question/16673286

4 0
2 years ago
What is one problem William encounters, after inventing the windmill, that he uses curiosity and ingenuity to solve?
Ksivusya [100]

Answer:

Another problem with William's windmill is the small bike chain that often snaps when the wind blows too hard. William has to go up the tower and fix it, risking injury to his hands from the sharp tractor fan and spinning metal blades
Hope it Helps!

8 0
2 years ago
Name a medicine that can cure cancer?
rewona [7]

Answer:

Hi, There! Your Answer Is Below! :) *Hint* (Dont Forget to mark Thanks)

Chemotherapy Is The Best Answer

Explanation:

Chemotherapy is a type of cancer treatment that uses drugs to kill cancer cells.

___________________________________________________________

Have a great Day!

6 0
2 years ago
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