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Leya [2.2K]
3 years ago
15

Compounds are pure substances. What other substances are considered pure substances?

Chemistry
1 answer:
dimaraw [331]3 years ago
6 0

Answer:

um... hydrogen gas

gold metal

sugar (sucrose)

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Answer:

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8. If a sample of chloroform is initially at 25°C, what is its final temperature if 150.0 g of chloroform
sashaice [31]

Answer:

The final temperature is 31.95° C.

Explanation:

Given that,

Initial temperature of a sample of chloroform, T_i=25^{\circ} C

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The specific heat of chloroform, c = 00.96 J/gºC

We need to find the final temperature. The heat absorbed by an object in terms of specific heat is given by :

Q=mc\Delta T\\\\Q=mc(T_f-T_i)\\\\\dfrac{Q}{mc}+T_i=T_f\\\\T_f=\dfrac{10^3}{150\times 0.96}+25\\\\=31.95^{\circ} C

So, the final temperature is 31.95° C.

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hope this helped

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2 years ago
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yKpoI14uk [10]
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3 years ago
Once again if anyone could help, I would really appreciate your help! Thank you ❤️
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D

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I explained how to do it on your other problem so look there :)

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