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Nonamiya [84]
3 years ago
7

Help me pretty please

Chemistry
1 answer:
Natalka [10]3 years ago
7 0

Answer:

The top answer

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At which of the following temperatures is the average kinetic energy of the molecules of a substance the least? 23.2 °C 35.2 °C
svp [43]
At 15.2°C. Kinetic energy of molecules highly depends on the temperature — the warmer it is, the faster the molecules will move, especially in fluids (gases and liquids). If we consider that the formula for average kinetic energy of molecules is:

Ek = 3/2*k*T where k is Boltzmanns constant and 3/2 is, well, 3/2, kinetic energy of molecules really only depends on the temperature.
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4 years ago
12.7 l of argon at 33°c and 735 torr are dissolved in enough water to give a final volume of 0.750 l. what is the molarity of th
Damm [24]

The molarity of the resulting solution is 0.65 M.

<h3>Which molarity is it?</h3>
  • To be able to comprehend what we mean by the molarity of a solution, we must first go back in time. We are aware that molarity refers to the concentration of the component in the solution. In this situation, it's important to be aware that the molarity can only be represented in terms of moles per litre.
  • The number of moles of the gas must now be determined, and this can only be done by applying the ideal gas equation, which is what we will be able to accomplish in this issue.

PV = nRT

Pressure is P.

Volume is V.

The number of moles is n.

Gas constant R

Temperature is T

n = PV/RT

n = 0.97 * 12.7/0.082 * 306

n = 12.3/25.1

N=0.49 moles.

Number of Mole/Volume Equals Molarity of the Solution

0.49 moles/0.750 liters

= 0.65 M

To learn more about molarity refer to:

brainly.com/question/29816881

#SPJ4

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What is this element?
scoray [572]

Answer:

stuff around the earth

Explanation:

like water,fire,wind,and earth/plants

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What instrument, along with a telescope, allows study of the wavelengths of visible light coming from a star?
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