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3 years ago

Please help :( I don’t understand this question

Chemistry

2 answers:

Karolina [17]3 years ago

8 0

Answer:

A...................................

patriot [66]3 years ago

7 0

Answer:

Explanation:

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Can two different samples of the same substance have different physical properties? Chemical properties?

lina2011 [118]

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3 years ago

Read 2 more answers

A solution of chloroform, CHCl3, and acetone, (CH3)2CO, exhibits a negative deviation from Raoult's law. This result implies tha

Gnoma [55]

The given question is incomplete. The complete question is as follows.

A solution of chloroform ( $CHCl_{3}$ ) and acetone ( $(CH_{3})_{2}CO$ ) exhibits a negative deviation from Raoult's law. This result implies that:

chloroform-chloroform interactions are stronger than chloroform-acetone interactions.

chloroform-chloroform interactions are weaker than chloroform-acetone interactions.

acetone-acetone interactions are stronger than chloroform-acetone interactions.

acetone-acetone interactions are weaker than chloroform-acetone interactions

chloroform-chloroform interactions are weaker than chloroform-acetone interactions AND acetone-acetone interactions are weaker than chloroform-acetone interactions.

Explanation:

It is known that when the forces between the particles of the mixture are stronger than the forces between the particles in the pure liquids then negative deviations from Raoult's law are observed.

Hence, when a solution of chloroform ( $CHCl_{3}$ ) and Acetone ( $(CH_{3})_{2}CO$ ) will exhibit a negative deviation from Roult's law.

Then, chloroform-chloroform interactions should be weaker than chloroform-acetone interactions and acetone-acetone interactions must be weaker than Chloroform-Acetone interactions.

thus, we can conclude that for the given situation chloroform-chloroform interactions are weaker than chloroform-acetone interactions AND acetone-acetone interactions are weaker than chloroform-acetone interactions.

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3 years ago

An empty Erlenmeyer flask weighs 241.3 g. When filled with water (d = 1.00 g/cm³), the flask and its contents weigh 489.1 g. (a)

miskamm [114]

The answer is- Volume of flask = 247.8 $cm^3$ or 247.8 mL.

Density (d) is defined as mass of substance divided by its volume. Thus, if mass and density are known, then Volume can be determined.

What is the formula of volume in terms of density?