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artcher [175]
3 years ago
11

Calculate the number of moles in the 2.1-L volume of air in the lungs of the average person. Note that the air is at 37.0ºC (bod

y temperature). Use standard atmospheric pressure.
Chemistry
1 answer:
adelina 88 [10]3 years ago
7 0
Answer: 0.0826mol

PV=nRT
n=PV/RT
n=(1atm)(2.1L)/(310K)(0.082057L*atm/mol*K)=0.0826mol
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Yuki888 [10]

Answer:

c) the study of matter and the changes it undergoes

Explanation:

Chemistry -

It is the sub topic of science , dealing with the study of matter , the properties of matter , the type of interaction between the particles of matter , the reason for the particle of matter to combine and separate in order to form new substance .

The basic concepts of chemistry are applicable on the day to day activities.

Hence, from the given options , the correct statement is c) the study of matter and the changes it undergoes.

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What is special about the kelvin temperature scale
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Help!! < PHYSICAL SCIENCE>
Vlad1618 [11]
The answer is B or the second answer
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3 years ago
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DerKrebs [107]

Answer: D. like dissolves like

Explanation:

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Hydrocarbons are non polar in nature due to less difference between the electronegativities of carbon and hydrogen and thus are soluble in non polar solvents only.

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4 0
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photoshop1234 [79]

KClO3 (aq) will have greater molar entropy than KClO3 (s) because molar entropy increases with increase in temperature.

As the temperature rises, the standard molar entropy of any substance rises. Entropy and a Single Substance's Temperature ” Entropy increases significantly when a solid turns into a liquid and when a liquid turns into a gas. The entropy of the liquid is lower than that of the gas. As a result, entropy rises in reactions that produce gaseous byproducts from solid or liquid reactants. When solid reactants produce liquid products, entropy also rises.

Learn more about Molar entropy here-

brainly.com/question/3627396

#SPJ4

5 0
1 year ago
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