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Alla [95]
1 year ago
5

Challenge Air is a mixture of gases. By percentage, it is roughly 78 percent nitrogen, 21 percent oxygen, and 1 percent argon. (

There are trace amounts of many other gases in air. If the atmospheric pressure is 760 mmHg, what are the partial pressures of nitrogen, oxygen, and argon in the atmosphere?
Chemistry
1 answer:
Softa [21]1 year ago
4 0

The partial pressures of gases in air at 760 mmHg are N₂ (592.8 mmHg), O₂ (159.6 mmHg) and Ar (7.6 mmHg).

<h3>What is partial pressure?</h3>

Partial pressure is the pressure of a gas in a mixture of gases.

Air is a mixture of gases with 78% N₂, 21% O₂, 1% Ar and other gases in trace amounts. The partial pressure of a gas is proportional to its percentage.

Let's calculate the partial pressures of these gases, considering that the atmospheric pressure is 760 mmHg.

pN₂ = 760 mmHg × 78% = 592.8 mmHg

pO₂ = 760 mmHg × 21% = 159.6 mmHg

pAr = 760 mmHg × 1% = 7.6 mmHg

The partial pressures of gases in air at 760 mmHg are N₂ (592.8 mmHg), O₂ (159.6 mmHg) and Ar (7.6 mmHg).

Learn more about partial pressure here: brainly.com/question/19813237

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vampirchik [111]

Answer:

1.08 × 103 K

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Explanation:

5 0
3 years ago
The bottom number on each element on the Periodic Table is called
Flura [38]

Answer:

The bottom number on each element of the periodic table are called the 4f series or lanthanoids and 5f or actanoids. They are also called inner transition elements.

7 0
3 years ago
Air pressure is measured in pascals. For a professional American football game, the ball should be inflated to about 90,000 pasc
Tatiana [17]

The variable "air pressure inside the football" in this experiment is quantitative and dependent variable. Hence, option D is correct.

<h3>What is the dependent variable?</h3>

The dependent variable is the variable that is being measured or tested in an experiment.

In the experiment, the scientist filled the footballs with fix quantity of pressure which was then kept for 12 hours. After 12 hours the pressure inside the footballs was again measured. Pressure here is a quantitative variable.

Since the air temperature is an independent variable. The pressure being the dependent variable depends upon the temperature of the air.

Independent variable; The variable which does not depends upon any other variable.

Dependent variable; The variable which depends upon the independent variable or varies with the change independent variable.

Qualitative variables are variables which cannot be expressed in form of numbers. They generally convey the characteristic, category, quality or type.

Whereas Quantitative variables are the variables which can be expressed in the form of numbers. These are the variables which exist along the continuous sequence.

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7 0
2 years ago
At a constant temperature, 600 mL of an ideal gas is at a pressure of 760 mmHg . If the volume is decreased to 300 mL, the press
belka [17]

Answer:

1520mmHg

Explanation:

Data obtained from the question include:

V1 (initial volume) = 600 mL

P1 (initial pressure) = 760 mmHg

V2 (final volume) = 300 mL

P2 (final pressure) =.?

Using the Boyle's law equation P1V1 = P2V2, the final pressure of the gas can easily be obtained as shown below:

P1V1 = P2V2

760 x 600 = P2 x 300

Divide both side by 300

P2 = (760 x 600) /300

P2 = 1520mmHg

The final pressure of the gas is 1520mmHg

7 0
3 years ago
Your solution has a volume of 36 ml and a mass of 970 g. what is the density of your solution
LenaWriter [7]

Answer:

The answer is

<h2>26.94 g/mL</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume}  \\

From the question

mass = 970 g

volume = 36 mL

The density of the object is

density =  \frac{970}{36}  \\ 26.944444...

We have the final answer as

<h3>26.94 g/mL</h3>

Hope this helps you

6 0
3 years ago
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