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Sphinxa [80]
3 years ago
14

Choose a depiction of a gas sample containing equal molar amounts of xenon and argon as described by kinetic molecular theory. R

ed dots are used to represent xenon atoms and blue dots to represent argon atoms. Each atom is drawn with a "tail" that represents its velocity relative to the others in the mixture.

Chemistry
2 answers:
Setler79 [48]3 years ago
7 0

Answer:

On the attached picture.

Explanation:

Hello,

At first, it is important to remember that kinetic molecular theory help us understand how the molecules of a gas behave in terms of motion. In such a way, the relative velocity of a gas molecule has the following relationship with the gas' molar mass:

V∝\frac{1}{\sqrt{M} }

That is, an inversely proportional relationship which allows us to infer that the bigger the molecule the slower it. In this manner, as argon is smaller than xenon, it will move faster.

Now, as the gases are in equal molar amounts and considering that argon moves faster, on the attached picture you will find the suitable depiction of the gas sample, since red dots (argon) have a larger tail than the blue dots (xenon).

Best regards.

rusak2 [61]3 years ago
3 0

Answer:

<u>Kinetic Molecular theory(KMT):</u>Each molecules or atom of any gas is in a constant motion, and will have an elastic form of collision with other atoms present along with it inside any enclosed area or container.

And, the total kinetic energy of the molecules will be equal to the total or absolute temperature possessed by the number of atoms which are in motion inside the enclosed container.

Explanation:

<u>Xenon and Argon's molecules inside a container:</u>

When we study the properties of argon,Ar and xenon,Xe the denser molecule is the later one.As, the density of xenon,Xe is around 5.761 kg/m³, while the argon's density is about 1.7838 kg/m³. So, obviously the moment of argon's molecules will be more then that of xenon's. And the "tail" drawn with the molecules will be highlighted with high value of velocity inside the diagram.

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cupoosta [38]

Answer:

c.boron-11

Explanation:

The atomic mass of boron is 10.81 u.

And 10.81 u is a lot closer to 11u than it is to 10u, so there must be more of boron-11.

To convince you fully, we can also do a simple calculation to find the exact proportion of boron-11 using the following formula:

(10u)(x)+(11u)(1−x)100%=10.81u

Where u is the unit for atomic mass and x is the proportion of boron-10 out of the total boron abundance which is 100%.

Solving for x we get:

11u−ux=10.81u

0.19u=ux

x=0.19

1−x=0.81

And thus the abundance of boron-11 is roughly 81%.

6 0
2 years ago
What are two things that you observed when you heated the mixture of tin and nitric acid over the Bunsen burner in the virtual l
Rus_ich [418]
1. The reaction for this would be:

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The first observation would be bubbling of the solution and brown acrid smoke is produced due to the presence of NO₂ gas. Another observation would be the presence of a white solid which is SnO₂.

2. Heating was required to get rid of the H₂O. When all moisture is gone, you weigh the sample. Afterwhich, you further heat it to get ride of the oxygen. By doing this, you would know the individual mass of each element. Then, you can solve for the empirical formula of the oxide of tin.
3 0
3 years ago
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djverab [1.8K]

Answer:

yes

Explanation:

How many grams of KCl will dissolve in 1 liter of H2O at 50 °C? 5. 58.0 g of K2Cr2O7 is added to 100 g H2O at. 0 °C. With constant stirring, to what temp-.

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Answer:

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Explanation:

The only way to know if tap water contains lead is to do tests to determine the levels of that metal in the water. Therefore, the state is under an obligation to constantly conduct such tests in the resident´s homes and thus determine whether the water supplied is fit for human consumption.  

The state after the tests must guarantee the population the treatment of the water to reduce the levels of lead. The main pipes that contain lead pipes must be changed, as well as those parts of the service connections made of lead.

5 0
3 years ago
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kkurt [141]

Answer:

You're answer would be B.

Explanation:

5 0
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