Which digestive system organ has the main function of absorbing water from digested material?

At 35.0°c and 3.00 atm pressure, a gas has a volume of 1.40 l. what pressure does the gas have at 0.00°c and a volume of 0.950 l

Leona [35]

Answer : The pressure of gas will be, 3.918 atm and the combined gas law is used for this problem.

Solution :

Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.

The combined gas equation is,

$\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}$

where,

$P_1$ = initial pressure of gas = 3 atm

$P_2$ = final pressure of gas = ?

$V_1$ = initial volume of gas = 1.40 L

$V_2$ = final volume of gas = 0.950 L

$T_1$ = initial temperature of gas = $35^oC=273+35=308K$

$T_2$ = final temperature of gas = $0^oC=273+0=273K$

Now put all the given values in the above equation, we get the final pressure of gas.

$\frac{3atm\times 1.40L}{308K}=\frac{P_2\times 0.950L}{273K}$

$P_2=3.918atm$

Therefore, the pressure of gas will be, 3.918 atm and the combined gas law is used for this problem.

4 0

3 years ago

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Scientific explanations are not always based on empirical evidence <br><br> True or false?

tigry1 [53]

True some explanations are not always based on empirical evidence

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3 years ago

In a common laboratory experiment in general chemistry students are asked to determine:_____.

Alex787 [66]

<h3>The <u>complete question</u> would be:</h3>

In a common laboratory experiment in general chemistry, students are asked to determine the relative amounts of benzoic acid and charcoal in a solid mixture. Benzoic acid is relatively soluble in hot water, but charcoal is not. Devise a method for separating the two components in the mixture.

<h3>The <u>solution</u> for that would be:</h3>

First you put the mixture in hot water and allow the benzoic acid to separate. Next funnel it and then see what's on the funnel paper. Lastly, heat the leftover water and see what's left after it evaporates.

<h3><u>What are laboratory experiments ?</u></h3>

Using controlled surroundings to test theories, researchers may develop laboratory experiments.
Laboratories are rooms or specially constructed facilities within buildings that are often found on college and university campuses and are utilized for academic research.
It's crucial to differentiate between experiments and other kinds of research investigations carried out in lab settings.
Even if a research study takes place in a lab, it is not always an experiment.
In order to evaluate causal conclusions regarding the links between independent and dependent variables, laboratory studies, like all genuine experimental designs, use procedures of random assignment of participants and control groups.

To view more about experiments, refer to:

brainly.com/question/17143317

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8 months ago

Are the properties of a specific element the same as the properties of a molecule made up of that element? Why or why not?

LuckyWell [14K]

Answer:

no molecule and properties or defent

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2 years ago

A 20.0-g sample of sugar is dissolved in 59.8 g of water. What is the concentration of the solution?