Please let me know if this is correct?

Chemistry

1 answer:

siniylev [52]3 years ago

6 0

Answer: Yes! you're all good. Alkali metals in group 1 are the most metallic :)

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According to the kinetic-molecular theory, the average kinetic energy of gas

vladimir1956 [14]

Answer:

The average kinetic energy of a gas depends only on its temperature.

Explanation:

The average kinetic energy of particles in a gas can be found using the equation

$\displaystyle \text{Average K.E.} = \frac{3}{2}k\cdot T$ ,

where

$k$ is the Stefan-Boltzmann constant, and
$T$ is the absolute temperature of this gas (the one in degree Kelvins.)

As seen in this equation, the average kinetic energy of particles in a gas depends only on the temperature of the gas. Also, since the question is asking for the average not the total kinetic energy, the number of particles in this gas doesn't matter, either.

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3 years ago

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Virty [35]

I hope this helps !

—-
-GOOD LUCKKKk!!!

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3 years ago

You need to use a dilute hydrochloric acid solution in an experiment. However, the only bottle of hydrochloric acid in your lab’

mr_godi [17]

The pH of the diluted HCl solution is 1.3.

Explanation:

Given:

The concentrated HCl solution of 8.0 M. The 1.5 mL of 8.0 M HCl is diluted with water to 250 mL volume.

To find:

The pH of the diluted HCl solution.

Solution

The concentration of the HCl solution before dilution = $M_1=8.0 M$
The volume of the HCl solution taken for dilution = $V_1=1.5 ml$
The concentration of the HCl solution after dilution = $M_2=?$
The volume of the HCl solution after dilution = $V_2=250 mL$