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VladimirAG [237]
3 years ago
6

Please help me with this question.

Chemistry
1 answer:
Norma-Jean [14]3 years ago
6 0

Answer:

B or c

Explanation:

It might bee

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Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25 ∘C, the vapor pressure of pure be
Kisachek [45]

Answer:

P_{solution} = 85.3Torr

Explanation:

Raoult's law is a tool that allows to determine vapour pressure of solutions. The formula is:

P_{solution} = X_{solvent}P_{solvent} <em>(1)</em>

Where

P is Pressure of solution and solvent and X is mole fraction.

Moles of solute and solvent are:

Biphenyl:

11.5g×(1mol /154.21g) = <em>0.0746mol</em>

Benzene

31.9g×(1mol /78.11g) = <em>0.408mol</em>

Mole fraction of benzene is:

\frac{0.408mol}{0.408mol + 0.0746mol} = <em>0.846</em>

Replacing in (1):

P_{solution} = 0.846*100.84Torr

P_{solution} = 85.3Torr

I hope it helps!

3 0
3 years ago
What is the relative size of microwaves​
sleet_krkn [62]

Answer:

width of between 29 and 30 inches, a depth of between 15 and 16 inches, and a height of between 16 and 18 inches.

6 0
3 years ago
Which of the following sequences of elements would all have four valence electrons?
Svetradugi [14.3K]

Answer:

Your answer should be B.) C, Si, Ge, Sn! I hope this helps you! :)

5 0
3 years ago
Explain how the law of conservation of mass necessitates our balancing all chemical equations.
denis23 [38]
The law of conservation of mass states that energy can neither be created, nor destroyed. It applies to all the chemical equations because everything is about matter. Changing one chemical to another, changing forms, shapes, colors, types to other ones. But in each and every single process of this universe, nothing is created or destroyed. It's just the simplest to the most complex transfers of energy throughout the universe.
I hope this helped. 
5 0
3 years ago
Which states of water can you find in your home? Explain.
rosijanka [135]

Answer:

all

Explanation:

water vapor is everywhere

ice is in the freezer and hopefully you drink water.  

5 0
3 years ago
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