You make a solution that has 20 molecules of glucose, 210 molecules of hemoglobin, and 770 molecules of water. What is the solute concentration in %?

Percentage of water = 2%

Percentage of water = 21%

Percentage of water = 77%

Explanation:

Given data:

Number of molecules of glucose = 20

Number of molecules of hemoglobin = 210

Number of molecules of water = 770

Solution:

To calculate the percentage 1st of all we will determine the total number of molecules.

Total number of molecules = Number of molecules of water + hemoglobin + glucose

Total number of molecules = 770 + 210 + 20

Total number of molecules = 1000

Percentage of water:

Percentage of water = 770/1000 ×100

Percentage of water = 0.77 ×100

Percentage of water = 77%

Percentage of hemoglobin:

Percentage of water = 210/1000 ×100

Percentage of water = 0.21 ×100

Percentage of water = 21%

Percentage of hemoglobin:

Percentage of water = 20/1000 ×100

Percentage of water = 0.02 ×100

Percentage of water = 2%

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metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

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