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nordsb [41]
4 years ago
8

An individual suffering from a high cholesterol level in her blood. if the total blood volume of the individual is 5.2 l, how ma

ny grams of total blood cholesterol does the individual's body contain
Chemistry
1 answer:
Usimov [2.4K]4 years ago
4 0

If the concentration of cholesterol is 238mg/100ml:

238 mg ==> 100ml

2380 mg (or 2.38g) ==> 1000ml (1L)

So the concentration will be 2.38 g/L of cholesterol.

if the volume is 5.2 L, the total grams of cholesterol would be :

m = C . V = 2.38g/L * 5.2 L = 12.376 grams of cholesterol.

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3 common uses for salt
icang [17]

Answer:

Salt has long been used for flavoring and for preserving food. It has also been used in tanning, dyeing and bleaching, and the production of pottery, soap, and chlorine. Today, it is widely used in the chemical industry.

7 0
3 years ago
2) Calculate the percent composition of each element in Mgso,
iogann1982 [59]

Answer:

2)

\% Mg=20.2\%\\\\\% S=26.6\%\\\\\% O=53.2\%

3)

\% Ag=93.1\%\\\\\% O=6.9\%

Explanation:

Hello!

2) In this case, since magnesium sulfate is MgSO₄, we can see how magnesium weights 24.305 g/mol, sulfur 32.06 g/mol and oxygen 64.00 g/mol as there is one atom of magnesium as well as sulfur but four oxygen atoms for a total of g/mol; thus the percent compositions are:

\% Mg=\frac{24.305}{120.36 } *100\%=20.2\%\\\\\% S=\frac{32.06}{120.36 } *100\%=26.6\%\\\\\% O=\frac{64.00}{120.36 } *100\%=53.2\%

3) In this case, although the element seems to contain Ag and O, we infer its molecular formula is Ag₂O; thus, since we have two silver atoms weighing 215.74 g/mol and one oxygen atom weighing 16.00 g/mol for a total of 231.74 g/mol, we obtain the following percent compositions:

\% Ag=\frac{215.74}{231.74} *100\%=93.1\%\\\\\% O=\frac{16.00}{231.74} *100\%=6.9\%

Best regards!

7 0
3 years ago
determine whether the nucleus or the electron cloud contributes the most to the volume of an atom. Explain.
Dima020 [189]

Answer:

The electron cloud

Explanation:

<em>Rutherford’s gold foil experiment</em> showed that the atom consisted of a tiny nucleus inside of a much larger electron cloud.

The diameter of the electron cloud is about 50 000 times that of the nucleus.

5 0
3 years ago
Would the car be able to travel all the way through the track of the roller coaster shown below? Why or Why not?
xxMikexx [17]

Answer:

No because there is not enough Potential Energy at Point 1 to make it all the way through point 5.

Explanation:

8 0
3 years ago
Read 2 more answers
How will the properties of a biological membrane change if the fatty acid tails of the phospholipids are converted from saturate
kumpel [21]
Some of the properties that will change as the biological membrane composed primarily of phospholipids change from the saturated to unsaturated fatty acid tails of the phospholipid would include, permeability of the membrane, this will cause the membrane to be more fluid and not remain as controlling of the materials. The membrane will ultimately become poor in regulating ions and other materials from coming into the cell, as the phospholipids are not tightly packed due to them being unsaturated and having carbon double bonds within them. This can also affect the overall shape of the plasma membrane as well, causing it to be not as structured, and more fluid,
7 0
3 years ago
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