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kenny6666 [7]
3 years ago
12

Explain why we dissected the eggs that didn't hatch. What was the outcome of our dissection? PLEASE HELP DUE TONIGHT

Chemistry
1 answer:
stiks02 [169]3 years ago
5 0

Answer:

It helps us develop our obervation skills and we learn what the egg looks like. We can learn the nutritional values of the egg.

Explanation:

Hope that helped

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you uses 500 mg of sucrose and placed it into 200ml of water what is the concentration of this solution?
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We are given with 500 mg of sucrose dissoved in a 200 ml of water. The concentration of the solid is amount of solute per volume of the solvent. The concnetration can be expressed as 2.5 grams sugar per liter water or 250 mg per 100 ml water. 
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Which of the following is required for a liquid to become a solid one
tino4ka555 [31]

Answer:The process of a solid becoming a liquid is called melting

Explanation:

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Select the correct answer.
ryzh [129]

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3 years ago
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The osmotic pressure exerted by a solution is equal to the molarity multiplied by the absolute temperature and the gas constant
Elena-2011 [213]

Answer:

20 atm / (R . 321 K . i) = M

Explanation:

Osmotic pressure is a colligative property which is determined by the solute.

Solutes over solutions, can increase the osmotic pressure which is calculated like this:

P = M . R . T

where P is pressure, M is molarity, R the Universal Constant Gases and T, the absolute Temperature. We also have to consider the Van't Hoff factor, i, numbers of ions dissolved. Ionic salts determine more osmotic pressure than organic compounds, where i = 1. Then, the complete formula is:

π =  M . R . T . i

To determine molarity, osmotic pressure divide all the terms:

20 atm / (R . 321 K . i) = M

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If you see all the units in R, they will be cancelled, so finally the answer will be mol/L, which is molarity. The i term has no unit!.

4 0
2 years ago
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