Answer:
The correct answer is 0.047 mol/L
Explanation:
The atmospheric air is a mixture of gases. We can assume an ideal behavior of the gas and use the ideal gas equation:
PV= nRT
where P is the pressure, V is the volume, n is the number of moles, R is a constant (0.082 L.atm/K.mol) and T is the temperature in K.
We have to first convert the pressure from Torr to atm:
760 Torr= 1 atm
⇒ 718 Torr x 1 atm/760 Torr = 0.945 atm
Then, we convert the temperature from ºC to K:
0ºC = 273 K
⇒ -29ºC+273= 244 K
Finally, we introduce the data in the equation and calculate de densitiy, which is the moles per liters of gas (n/V):
PV = nRT
n/V= P/RT
n/V = (0.945 atm)/(0.082 L.atm/K.mol x 244 K) = 0.047 mol/L
The purpose of an experiment is to determine if the hypothesis is correct or incorrect
<h3>What is an experiment?</h3>
An experiment is a research or test conducted in order to prove or disprove a hypothesis.
An experiment can also be done to answer a question.
A hypothesis is an answer provided to explain an observation without conducting tests to back up the explanation given.
Therefore, an experiment is aimed at determining if a hypothesis is correct or not.
Learn more about experiments at: brainly.com/question/17274244
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Adding heat to a system can encourage or increases a chemical reaction.
<h3>Change that can encourage a reaction</h3>
Increasing the temperature of a process, increase occurs in the average speed of the reactant molecules and we know that when more molecules move faster, the more number of molecules reacts with other molecules which results in faster formation of products.
In conclusion, adding heat is the right option.
Learn more about reaction here: brainly.com/question/26018275
pick one volume and concentration as a sample
5.9 ml + 28.752 ml = 34.652
M1V1=M2V2
0.56 x 28.752 = M2 x 34.652
M2=0.464 M
