Answer:
The solution's new volume is 1.68 L
Explanation:
Dilution is the procedure to prepare a less concentrated solution from a more concentrated one, and simply consists of adding more solvent. So, in a dilution the amount of solute does not vary, but the volume of the solvent varies.
In summary, a dilution is a lower concentration solution than the original.
The way to do the calculations in a dilution is through the expression:
Ci*Vi=Cf*Vf
where C and V are concentration and volume, respectively; and the i and f subscripts indicate initial and final respectively.
In this case, being:
- Ci= 7 M
- Vi= 0.60 L
- Cf= 2.5 M
- Vf=?
Replacing:
7 M*0.60 L= 2.5 M* Vf
Solving:
Vf= 1.68 L
<u><em>The solution's new volume is 1.68 L</em></u>
Hello I took this test just now and got 100% your correct answer would be C. Hope this helps.
Answer is: total pressure is 108.96 mmHg.
p(n-hexane) = 151.4 mmHg; pressure of n-hexane.
p(n-heptane) = 45.62 mmHg.
χ(n-hexane) = 0.600; mole fraction.
χ(n-heptane) = 1 - 0.6 = 0.400.
Using Raoult's Law: <span>
p(total) =
p(n-hexane) · χ(n-hexane) + p(n-heptane) · χ(n-heptane).
</span>p(total) = 151.4 mmHg · 0.6 + 45.32 mmHg · 0.4.
p(total) = 108.96 mmHg.
According to the research, a hazard is <u>the </u><u>real possibility</u><u> that we will suffer some </u><u>harm</u>. An example of a hazard is <u>free </u><u>toxic gases</u>.
<h3>What is a hazard?</h3>
It is associated with situations that have potentially harmful effects on the body, the environment or property.
In chemistry, it is understood as those conditions of potential health damage caused by uncontrolled exposure to chemical agents of various kinds, such as the release of toxic and flammable gases such as ethanol.
Therefore, we can conclude that according to the research, a hazard is <u>the </u><u>real possibility</u><u> that we will suffer some </u><u>harm</u>. An example of a hazard is <u>free </u><u>toxic gases</u>.
Learn more about a hazard here: brainly.com/question/13340017
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The best option would be C because it looks like a bass and the rest are prehistoric fossils D is a nautilus and A is a dinosaur skull
