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Reef Chemistry Question of the Day #239
Suppose that a DIY version of NOPOX contains a mixture of the following chemicals:
water (85%)
ethanol (10%)
acetic acid (3%)
methanol (1%)
isopropanol (1%)
If you allow half of it to evaporate away into dry air, the relative concentration of each of these chemicals in the remaining mixture, compared to the starting mixture, has done what?
A. Water and isopropanol increase, the others decrease
B. Water and acetic acid increase, the others decrease
C. Water and ethanol increase, the others decrease
D. Acetic acid and isopropanol increase, the others decrease
E. Acetic acid and ethanol increase, the others decrease
F. Acetic acid increases, the remainder decrease
G. They all increase
H. They all decrease
As a hint, the boiling points for the
water (100 deg C)
ethanol (78 deg C)
acetic acid (118 deg C)
methanol (65 deg C)
isopropanol (83 deg C)
Good luck!
.
Suppose that a DIY version of NOPOX contains a mixture of the following chemicals:
water (85%)
ethanol (10%)
acetic acid (3%)
methanol (1%)
isopropanol (1%)
If you allow half of it to evaporate away into dry air, the relative concentration of each of these chemicals in the remaining mixture, compared to the starting mixture, has done what?
A. Water and isopropanol increase, the others decrease
B. Water and acetic acid increase, the others decrease
C. Water and ethanol increase, the others decrease
D. Acetic acid and isopropanol increase, the others decrease
E. Acetic acid and ethanol increase, the others decrease
F. Acetic acid increases, the remainder decrease
G. They all increase
H. They all decrease
As a hint, the boiling points for the
water (100 deg C)
ethanol (78 deg C)
acetic acid (118 deg C)
methanol (65 deg C)
isopropanol (83 deg C)
Good luck!
.