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erica [24]
3 years ago
13

When air pressure rapidly falls, what weather change usually occurs?

Chemistry
1 answer:
Mama L [17]3 years ago
8 0

hope this helps

Explanation:

a prolong storm will occur

that's what I found

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Examine the drawing of a molecule. Each ring represents an atom of nitrogen (N). What's the chemical formula of this
Agata [3.3K]
You did not link an image of it so I can’t see the rings.
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2 years ago
The vapor pressure of benzene is 73.03 mm Hg at 25°C. How many grams of estrogen (estradiol), C18H24O2, a nonvolatile, nonelectr
alexira [117]

Answer:

14.9802 grams of estrogen must be added to 216.7 grams of benzene.

Explanation:

The relative lowering of vapor pressure of solution containing non volatile solute is equal to mole fraction of solute.

\frac{p_o-p_s}{p_o}=\frac{n_2}{n_1+n_2}

Where:

p_o = Vapor pressure of pure solvent

p_s = Vapor pressure of the solution

n_1 = Number of moles of solvent

n_2 = Number of moles of solute

p_o = 73.03 mmHg

p_s= 71.61 mmHg

n_1=\frac{216.7 g}{78.12 g/mol}=2.7739 mol

\frac{73.03 mmHg-71.61 mmHg}{73.03 mmHg}=\frac{n_2}{2.7739 mol+n_2}

n_2=0.05499 mol

Mass of 0.05499 moles of estrogen :

= 0.05499 mol × 272.4 g/mol = 14.9802 g

14.9802 grams of estrogen must be added to 216.7 grams of benzene.

6 0
2 years ago
Which of the following is an examples of chemical change?
aleksandrvk [35]

Answer:

Burning of paper

5 0
3 years ago
Read 2 more answers
How do scientists know how atoms are structured?
astraxan [27]

Explanation:

i guess it's through thousands of research and experiments they conducted

5 0
2 years ago
What is the boiling point of cyclohexane at 620 mm hg?
Alchen [17]

The right answer is 271.78 degrees for cyclohexane.

For each liquid there is a precise relationship between pressure and boiling temperature, we can define the boiling temperature as the moment when the first bubble of vapor appears on the surface of a liquid.

8 0
3 years ago
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