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3 years ago

Distillation is the process of separating liquids by using

Chemistry

2 answers:

Mekhanik [1.2K]3 years ago

6 0

Answer:

the action of purifying a liquid by a process of heating and cooling.

Explanation:

masha68 [24]3 years ago

4 0

Answer: if you have a mixture of liquids, generally of varying boiling points, Distillation is a very useful technique. One of the simplest setups involves a Round bottom Flask w/ a thermometer in the top, with its bulb at where it is near a tube angled slightly downward out into a condenser.

As the flask is heated, the more volatile (lower B.P.) liquids will rise as fumes, register a temperature, and in the condenser, become liquid again. As this process continues, and you take the fractions at differing temps,

You can efficiently separate the various components If the Boiling Points are not too similar. There is more, but this is a good start.

Explanation:

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3 years ago

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Leto [7]

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4 years ago

What is the percent composition by mass of hydrogen in nh4hco3

Simora [160]

<u>Answer:</u> The percent composition by mass of hydrogen in given compound is 6.33 %

<u>Explanation:</u>

We are given:

A chemical compound having chemical formula of $NH_4HCO_3$

It is made up by the combination of 1 nitrogen atom, 5 hydrogen atoms, 1 carbon atom and 3 oxygen atoms

To calculate the percentage composition by mass of hydrogen in the compound, we use the equation:

$\%\text{ composition of Hydrogen}=\frac{\text{Mass of hydrogen}}{\text{Mass of compound}}\times 100$

Mass of compound = $[(1\times 14)+(5\times 1)+(1\times 12)+(3\times 16)]=79g/mol$

Mass of hydrogen = $(5\times 1)=5g/mol$

Putting values in above equation, we get:

$\%\text{ composition of Hydrogen}=\frac{5g/mol}{79g/mol}\times 100=6.33\%$

Hence, the percent composition by mass of hydrogen in given compound is 6.33 %

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