1) 1.8 micrograms(least)
2) 1.8 grams
3) 1.8 kilograms(greatest)
The dependant variable is what you measure during the experiment and what is affected in the experiment (this is for question 4) so the answer would be D
The correct answer is C because a Controlled Experiment tests only one factor at a time and consists of a control group and one or more experimental groups.
Answer:
c) 0.145
Explanation:
By Raoult's Law, the pressure of a solution is equal to the molar fraction of the solvent multiplied by its vapor pressure. The solvent here is ether, so
342 = x*400
x = 342/400
x = 0.855
The solution has only ether and benzoic acid, so the molar fraction of benzoic acid will be
1 - 0.855 = 0.145