What would have been the result of using tap water instead of distilled water in

Question

What would have been the result of using tap water instead of distilled water in our distillation?

Select one:

a. A higher boiling point than distilled water.

b. A lower boiling point than distilled water.

c. The same boiling point as distilled water.

Using Figure 5.6 and the explanation of how to read Figure 5.9 of your text, if your fractional distillation column is not well packed and only provides 2 theoretical plates (the equivalent of two simple distillations), what would be the boiling point of the distillate of your fractional distillation setup starting with a 0.95 mole fraction of water mixture?

Select one:

a. between 90-100 °C

b. between 65-70 °C

c. between 80-90 °C

d. between 70-80 °C

Using Figure 5.6 from your text, what would be the composition of the vapor from a simple distillation of a 0.9 mole fraction of water mixture?

Select one:

a. 0.26

b. 0.52

c. 0.04

d. 0.07

e. 0.32

f. 0.16

g. 0.40

h. 0.21

i. 0.12

Explanation / Answer

Ans 1

Tap water contains impurities. These impurities have high melting and boiling points (>100°C)

Distilled water is the pure water and the boiling point is 100°C

A higher boiling point than distilled water.

Option A is the correct answer

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