The addition of sugar in water and disappearing of the solid in water is due to the high solubility of the solid that is sugar in water. As it is seen in the experiment there will be no change of the solution except increasing of the volume. But if one look the solution from its density state, then there will be a remarkable change. The fact can be described in terms of density only. The density of the normal water and sugar added water will be different.
The density of the sugar added water will be more than the normal water. The density of a liquid depends upon its mass and volume. The definition of density is the mass of a material per unit of its volume. Here due to addition of 50 grams of sugar the mass will be increase and also its volume as a result the density will also increase.
Answer: There will be 41382 J energy must be absorbed by 45.0g of water to increase its temperature from
to
.
Explanation:
Given: Mass = 45.0 g
Initial temperature = 
Final temperature = 
Formula used to calculate heat energy is as follows.

where,
q = heat energy
m = mass of substance
C = specific heat =
(here, for water)
= initial temperature
= final temperature
Substitute the values into above formula as follows.

Thus, we can conclude that there will be 41382 J energy must be absorbed by 45.0g of water to increase its temperature from
to
.
The answer is homogeneous
Answer:
Faraday's constant will be smaller than it is supposed to be.
Explanation:
If the copper anode was not completely dry when its mass was measured, mass of the copper must be heavier than it should have been. Hence, the calculated Faraday’s constant would be smaller than it is supposed to be since when calculating Faraday’s Constant, the charge transferred is divided by the moles of electrons.