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3 years ago

How many substances does a pure piece of matter contain? A. 0 B. 1 C. 2 D. 3

Chemistry

1 answer:

Rama09 [41]3 years ago

4 0

B. 1. Think of pure grade alcohol is 100% alcohol

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13. What is the total pressure inside the container

nasty-shy [4]

Answer: The total pressure inside the container is 77.9 kPa

Explanation:

Dalton's law of partial pressure states that the total pressure of the system is equal to the sum of partial pressure of each component present in it.

To calculate the total pressure inside the container, we use the law given by Dalton, which is:

$P_T=p_{N_2}+p_{O_2}+p_{Ar}$

We are given:

Vapor pressure of oxygen gas, $p_{O_2}$ = 40.9 kPa

Vapor pressure of nitrogen gas, $p_{N_2}$ = 23.3 kPa

Vapor pressure of argon, $p_{Ar}$ = 13.7 kPa

Putting values in above equation, we get:

$p_T=23.3+40.9+13.7\\\\p_{T}=77.9kPa$

Hence, the total pressure inside the container is 77.9 kPa

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3 years ago

A pressure of 125,400 Pa is equal to kPa.

dalvyx [7]

Answer:

it is equal to 125 kPa

Explanation:

move the decimal 3 to the left

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Which liquid has the strongest intermolecular forces? a.chcl3 b.ccl4 c.h2o?

elixir [45]

In a solution of water and ethanol, hydrogen bonding is the strongest intermolecular force between molecules. Hydrogen bonding occurs when the partially negative oxygen end of one of the molecules is attracted to the partially positive hydrogenend of another molecule.

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