Answer:
See explanation
Explanation:
Precision means the reputability of measurement and accuracy means how close a measurement is to the actual value. To get the measured mass of the acetone we need to substract the mass of the bottle from the measured mass of bottle and acetone.
The mass of the bottle is 38.0015g
⇒The mass of acetone in bottle 1= 0.7783g
⇒Mass of acetone in bottle 2= 0.7780g
⇒Mass of acetone in bottle3= 0.7786g
The measured value is near to each other. ⇒ the measurements are <u>precise</u>.
To check the <u>accuracy</u> we can compare the average value to the actual mass of the acetone.
Average of the acetone measurement is (0.7783+0.7780+0.7786)/3 = 0.7783g
The percentage of difference of the average measurement to the actual mass is = {(actual value-measured value)/actual value}x100%
={(0.7791-0.7783)/0.7791}x100%
=0.10%
So we can see the difference is very small ⇒ the measurement is accurate.
Hypothesis
Therefore the last step in the scientific method is proposing a hypothesis or obtaining a conclusion
Your answer would be D you welcome !
Answer: The MAJOR energetic contribution to this property is the self association that maximizes the entropy of the water molecules.
Explanation:
Hydrophobic molecules (like oil) tend to self-associate in water rather than dissolve in it. The MAJOR energetic contribution to this property is the self association of this oil which increases the degree of disorderliness of the water molecules.
I think the answer would be b because your throat is reacting to the cough?
