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serious [3.7K]
3 years ago
8

Please help, due tomorrow! ツ

Chemistry
1 answer:
oksano4ka [1.4K]3 years ago
3 0

There are two kinds of mixtures

a) homogeneous : the boundary of the two components is not physically distinct

b) heterogeneous:the boundary of the two components is  physically distinct

the following separation techniques are common for mixtures

1) filtration: if the two components are forming heterogeneous mixture we can separate them by filtration.

2) boiling: if boiling point of one of the components is less than other

3) magnetic separation: if one of the component is magnetic

4)sieve method: for solid components with difference in size of particles

5) hand picking

Thus the correct match will be as shown in the figure


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The answer to your question is:

Explanation:

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carbon        7.3%          =     7.3g

hydrogen    4.5%         =      4.5g

oxygen       36.4%         =     36.4 g

nitrogen     31.8%         =     31.8 g

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For hydrogen

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For oxygen

             16 g ------------------- 1 mol

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For nitrogen

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carbon              0.608/0.608 = 1

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nitrogen             2.27/0.608 = 3.73

Empirical formula = CH₇O₄N₄

     

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