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Semenov [28]
3 years ago
13

How can you test the complete separation of camphor and sand​

Chemistry
2 answers:
Tcecarenko [31]3 years ago
8 0

Answer:

We know that camphor is a sublime substance and sand is not a sublime substance. Thus we can separate camphor from sand by heating the mixture slowly. The vapours of camphor should be then collected and cooled down. We would observe that solid camphor crystals will form.

Explanation:

katrin2010 [14]3 years ago
6 0

Answer: Use own words

What method can be used to separate iron filings and sand?

Iron is magnetic and the other two not, which means a magnet could be used to attract the iron filings out of the mixture, leaving the salt and sand. Salt is water soluble, while sand is not. This means the two can be mixed in water and stirred. The salt will dissolve and the sand will not.

other words

How will you separate Camphor common salt and sand?

Camphor can be separated using sublimation as it is a sublime,common salt and sand mixture can be separated using evaporation and filtration respectively. Principle : Throught sublimation we will get camphor, through decantation sand and then through evaporation salt.

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The moles can be defined as the mass of the substance with respect to molar mass. The moles of potassium nitrate is 1 mol.

<h3>How to calculate moles of a substance?</h3>

The moles of a compound can be calculated from:

\rm Moles=\dfrac{Mass}{Molar\;mass}

The molarity can be defined as the moles of solute in a liter of solution.

The molarity can be expressed as:

\rm Molarity=\dfrac{Moles\;\times\;1000}{Volume\;(mL)}

The molarity of potassium nitrate solution is 2 M, and the volume is 500 mL.

The moles of potassium nitrate is given as:

\rm 2\;M=\dfrac{Moles\;\times\;1000}{500\;mL}\\ Moles=\dfrac{2\;\times\;500}{1000}\;mol\\ Moles=1\;mol

The moles of potassium nitrate in 2 M, 500 mL solution are 1 mol.

Learn more about moles, here:

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