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maria [59]
2 years ago
5

Why do gasses condense when cooled

Chemistry
1 answer:
Darya [45]2 years ago
6 0
Gassed condense because molecules decrease inside
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If the pressure inside your ballon is 800mmHG ,and the gas is at body temperature,37 degree Celsius , calculate the number of gr
SpyIntel [72]
With all of the information given (pressure, volume, temperature, and the molar mass), we need a formula that relates this all together. The formula we need is the ideal gas law, PV=nRT. Since the pressure is defined in millimeters of mercury, we need the R value that correlates with this, which is 62.4; on top of this, we need the temperature in Kelvin - simply add 273.15 to convert from Celsius. With all of this information, simply plug-and-chug:

PV=nRT
(800)(3.7) = n(62.4)(37 + 273.15)
n = 0.1529 moles

Finally, the problem is asking the amount of air in grams. We have moles, so all we need to do is multiply that value by the molar mass.

0.1529 moles x 29 grams per mole =
4.435 grams of air

The balloon has 4.435 grams of air inside it.

Hope this helps!
6 0
3 years ago
Question 7 of 25
Romashka-Z-Leto [24]

Answer:

A - Chemical potential energy being converted to heat energy

Explanation:

8 0
3 years ago
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During an ionic bond, electrons are basically transferred from one atom to another whereas in a covalent bond, electron pairs ar
Ad libitum [116K]
The answer is true......

8 0
2 years ago
Find the no. of atoms present in 40g of nitrogen gas at STP?
nika2105 [10]

Answer:

8.60 * 10^{23} atoms N2

Explanation:

We want to convert grams to moles and then moles to atoms.

First, we convert grams of nitrogen gas (which is N2) to moles. To do so, we need the molar mass of N2, which is just 14.01 * 2 = 28.02 g.

40 g N2 * \frac{1 mol N2}{28.02 g N2} = 1.43 mol N2

Now, we need to convert moles to atoms by using Avogadro's number, which is 6.022*10^{23}:

1.43 mol N2 * \frac{6.022*10^{23} atoms N2 }{1 mol N2} = 8.60 * 10^{23} atoms N2

Thus, the answer is 8.60 * 10^{23} atoms N2.

6 0
3 years ago
What is the ground-state electron configuration of a neutral atom of cobalt?
Andre45 [30]
4d7 , 3s2 will be the valence shell electronic configuration of a neutral atom of cobalt!
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3 years ago
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