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sertanlavr [38]
3 years ago
7

PLEASE HELP ASAP

Chemistry
1 answer:
iris [78.8K]3 years ago
7 0

Answer:

C

Explanation:

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Excerpt from textbook

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Calculate the mass (in grams) of 250mL of ether at 25 oC. The density of
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\boxed{\sf Density=\dfrac{Mass}{Volume}}

\\ \sf{:}\implies Mass=Density(Volume)

\\ \sf{:}\implies Mass=0.71(250)

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What is the condition of the outside air at a certain time and place?
11111nata11111 [884]
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3 years ago
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3 years ago
Which separation techniques will you apply for the separation of the following? a) oil from water b) kerosene and petrol c) salt
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Answer:

A) Separating funnel method

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E) It is based on the principle of separation whereby even though two substances are dissolved in the same solvent, their respective solubilities could be different. Thus, the component that has more solubility will rise fastest and will therefore get separated from the mixture.

Explanation:

A)

B) Kerosene and petrol are both miscible liquids and the difference in their boiling point temperature is not more than 25°C. Thus, we make use of Simple distillation.

C) Can be separated by evaporation where the water is boiled and it evaporates and leaves the salt behind

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E) Chromatography is used to separate components of a mixture.

It is based on the principle of separation whereby even though two substances are dissolved in the same solvent, their respective solubilities could be different. Thus, the component that has more solubility will rise fastest and will therefore get separated from the mixture.

7 0
3 years ago
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