Knowing that hexane is much more volatile than water, explain a possible source
ID: 575388 • Letter: K
Question
Knowing that hexane is much more volatile than water, explain a possible source of error in determining the average hexane droplet volume, and how this might affect the calculation of Avogadro's number?
Because hexane is volatile and goes to a gas readily, some of it will evaporate as you are adding drops to the graduated cylinder, so the number of drops to reach 1.0 ml may be high
Because hexane is volatile, it will react with water to produce a gas, so you will lose hexane and the number of drops added to reach 1.0 ml will be high.
Because hexane is volatile, it will react with water to produce a gas, so you will lose hexane and the number of drops added to reach 1.0 ml will be low.
Because hexane is volatile and goes to a gas readily, some of it will evaporate as you are adding drops to the graduated cylinder, so the number of drops to reach 1.0 ml may be low
A.Because hexane is volatile and goes to a gas readily, some of it will evaporate as you are adding drops to the graduated cylinder, so the number of drops to reach 1.0 ml may be high
B.Because hexane is volatile, it will react with water to produce a gas, so you will lose hexane and the number of drops added to reach 1.0 ml will be high.
C.Because hexane is volatile, it will react with water to produce a gas, so you will lose hexane and the number of drops added to reach 1.0 ml will be low.
D.Because hexane is volatile and goes to a gas readily, some of it will evaporate as you are adding drops to the graduated cylinder, so the number of drops to reach 1.0 ml may be low
Explanation / Answer
Ans A) because hexane is volatile and goes to a gas readily, some of it will evaporate as you are adding drops to the graduated cylinder, so the number of drops to reach 1.0 mL may be high.
Since hexane is a volatile liquid , it gets evaporated while it is transferred into the graduated cylinder. So more number of drops are required to fill up the same volume.
So as the avagadro's number with respect to volume is constant, it will lead to incorrect calculations.
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