What is the boiling point of cyclohexane at 620 mm hg?

Chemistry

1 answer:

Alchen [17]3 years ago

8 0

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.

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Calculate the number of molecules in 7 moles of oxygen

Alexxandr [17]

Answer:

4.21

Explanation:

use Avogadro's number

6.023 x 10^23

multiply this by 7 because you want to find 7 moles :

6.023 x 10^23 x 7 = 4.21

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4. What is a homogeneous solution? Give an example.

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Homogeneous solutions are solutions with uniform composition and properties throughout the solution.

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For example a cup of coffee, perfume, cough syrup, a solution of salt or sugar in water, etc. Heterogeneous solutions are solutions with non-uniform composition and properties throughout the solution.

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You work for a cutlery manufacturer who wants to electrolytically precipitate 0.500 g of silver onto each piece of a batch of 25

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Answer:

373.1 mL of AgCN (aq) must be poured into your electrolysis vat to ensure you have sufficient Ag to plate all of the forks.

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Mass of silver to be precipitated on ecah spoon = 0.500 g

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$Moles (n)=Molarity(M)\times Volume (L)$