1. If an experimental refractive index of 1.3566 22 is temperature corrected to

Question

1. If an experimental refractive index of 1.356622 is temperature corrected to an 18oC literature temperature, what would the corrected experimental index of refraction be?

1.357118

1.354818

1.356218

1.358418

2. Using the boiling point-composition diagram below, starting with a mixture of 10 mole % A and 90 mole % B, which compound is the most volatile?

A

B

they are equal in volatility

3. Using the boiling point-composition diagram, determine the composition and boiling point of the distillate obtained from a 20 mole % A sample distilled with two vaporization-condensation steps (i.e., two theoretical plates)?

a 20 mol % A and 34oC

b 9 mol % A and 27oC

c 9 mol % A and 23oC

d 3 mol % A and 21oC

1.357118

1.354818

1.356218

1.358418

Explanation / Answer

According to the given problem,

1.) Answer: D 1.3584

2.) Answer: A Compound A

3.) Answer: D 3 mol % A and 21oC

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