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sp2606 [1]
3 years ago
13

After boiling a chicken in a stock pot, you let the chicken stock cool down and place it

Chemistry
1 answer:
KATRIN_1 [288]3 years ago
5 0

Answer:

Chicken fat is in the shallowest area because, being hydrophobic and lipid content of chicken, it is the lowest density compound in the broth, therefore it rises and does not precipitate. All fats usually float in liquid media because their density is less than that of water.

On the other hand, the gelatin that forms in the boil of the chicken broth is a gelatinous compound that is very nutritionally rich, consisting of denatured proteins that leave the chicken undergoing aqueous coagulation.

Both do not mix and due to the difference in densities, but in order to dissociate it, it is convenient to use emulsifiers or by cryogenic methods where cold is applied and its division is better.

Explanation:

In liquid media such as chicken broth, or any broth, when proteins or foods that contain a large amount of fats and proteins are boiled, the fatty layer will always be the most superficial because it is the one with the lowest density, therefore, that denatured coagulated protein with water it will be the next layer and finally the solids such as bone or cartilage remains would be in the deepest area because they are the ones with the highest density.

Another method to dissociate these products is through enzymatic activity, throwing enzymes into the broth formed.

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Calculate the volume of each of the following gases at STP
kherson [118]
For Ar :

1 mol ------------ 22.4 L ( at STP )
7.6 mol ---------- x L 

x = 7.6 * 22.4

x = 170.24 L
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For C2H3:

1 mol ------------ 22.4 ( at STP)
0.44 mol --------- y L

y = 0.44 * 22.4

y = 9.856 L

hope this helps !.



7 0
4 years ago
How many acetone molecules are in a bottle of acetone with a volume of 445 mL ? (density of acetone = 0.788 g/cm3).
Mkey [24]
<h2>Hello!</h2>

The answer is: 3.63x10^{24}particles

<h2>Why?</h2>

First, we need to calculate the molecular weight of the acetone (CH3COCH3)

So,

C=12.011g/mol\\O=15.99g/mol\\H=1.008g/mol

Then,

CH3COCH3=12.011+(1.008)*3+12.011+15.999+12.011+(1.008)*3=58.08g/mol

Second, we need to calculate the mass of the acetone in the bottle

We need to remember that 1cm^{3}=1mL

So,

445cm^{3}*\frac{0.788g}{cm^{3}}=350.66g

Third, we need to calculate the number of moles:

350.66g*\frac{1mol}{58.08g}=6.03moles

Fourth, we need to calculate the number of atoms:

Remember, 1 mol=6.022x10^{23}particles

Therefore,

6.03moles*\frac{6.022x10^{23}particles }{1mol}=3.63x10^{24}particles

Have a nice day!

4 0
4 years ago
Read 2 more answers
Air is comprised predominantly of nitrogen (N2) and oxygen gas. The ambient air in this room contains about 0.28g of oxygen (O2)
viktelen [127]

Answer:

190 g

Explanation:

Knowing that:

  • O₂ gas in air: 0.28 g O₂ / L of air
  • Air inhaled at rest: 19.3 fl.oz. air / breath
  • Human takes 20 breaths / min

The grams of oxygen gas (O₂) that a human at rest inhales in 1 hour (60 minutes) will be calculated as:

grams of O₂ = breaths in 1 hour * air inhaled per breath * amount of O₂ in air

grams O_{2} = 60 min* 20 \frac{breath}{min} * 19.3 \frac{fl.oz. air}{breath} * \frac{1 L}{33.814 fl.oz.} * 0.28 \frac{g O_{2} }{L}

grams of O₂ = 191.78 g

190 g of O₂ are inhaled in 1 hour (written in correct number of significant figures)

*In the calculation the amount of air inhaled per breath was converted from fl.oz. to Liters knowing that <em>1 L = 33.814 fl.oz.</em>

7 0
3 years ago
Helppppp!!!! WILL AWARD 100 PTS
Ilia_Sergeevich [38]

Answer: 15

Explanation:

1. easy simple math

5 0
4 years ago
If different masses of water are heated to the same temperature, which sample will absorb more energy? Base your argument on the
MArishka [77]

Answer:

Heat, energy that is transferred from one body to another as the result of a difference in temperature.

Explanation:

5 0
3 years ago
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