Answer:
a. 4
Explanation:
The number of theoretical plates is the number of discrete distillations that would have to be performed to obtain an equivalent separation of a discrete plate. This number is commonly used as a measure of separation efficiency and is a useful when comparing the performance of various chromatographic columns.
One theoretical plate is equivalent to one vaporization-condensation cycle, which is equivalent to one simple distillation. Thus a fractionation column that can attain the equivalent of three simple distillations would be said to have three theoretical plates.
empirical formula = when the percentage compositions by mass of elements in a compound are divided by their relative atomic masses.
from the obtained amount the smallest amount will divide all.
the answers can then be rounded off if in decimals or they can be multiplied by 2 if they have .5 decimals e.g 2.5 , 7.5 , etc.
solution: HYDROGEN CARBON OXYGEN
2/1 74/12 24/16
2 6.167 1.5
2 / 1.5 6.167 / 1.5 1.5 / 1.5
1.333 4.111 1
1 4 1
answer : C4OH
HOPE IT HELPED !!!
Answer:
bonds with water molecules
Explanation:
The formula of the hydrated form is CuSO 4. 5H 2 O. The dot after the formula for copper sulphate indicates bonds with water molecules. Research suggests that the nature of these bonds is not as simple as was once thought.
Hope it helps :)
pls mark brainliest :P
In order for a solute to dissolve in a solvent,
the attractive forces between solute particles and the solvent particles must
be stronger than the attractive forces between solute-solute and
solvent-solvent particles. This is important so that the solute will remain in
solution.
