I think your answer choices are...
A. an educated guess
B. a statement of pure fact
C. a general principle based on an observable fact
D. a collection of data
Answer:
C. A general principle based on an observable fact
Explanation:
It can't be A as an educated guess is in scientific terms , a hypothesis.
It can't be B as that is a fact or a law
It can't be D as a collection of data is a data table.
Answer:
B). Precision.
Explanation:
During the course of measurements, two important factors are been seen to play key part which are accuracy and also precision. Precision here can reflect to the closeness of an answer towards the main value even though accuracy can show that too. Also it can show series of values been reproduced in the measurement flow; though in some cases can be a bit far from the actual value. Also its values are swen to be different because of repeatition and alsio in some cases, observational errors too.
Answer: 204.2 g/mol
Explanation:
Elevation in boiling point is given by:
= Elevation in boiling point = 
= boiling point constant = 
m = molality
where,
n = moles of solute = 
= weight of solvent in g = 1g
Molality =
Putting in the values we get,
The molar mass of caryophyllene is 204.2 g/mol.
