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The process referred to here is <u>filtration.</u>
Answer:
Which piece of equipment would be BEST to measure 5 mL of a liquid?
A 50 mL beaker filled halfway between 0 and 10 mL markings
A 50 mL Erlenmeyer flask filled halfway between 0 and 10 ml marking
A 10 mL graduated cylinder
A disposable dropper
A 100 mL graduated cylinder
Explanation:
To measure 5 mL of a liquid, the best equipment is
a 10 mL graduated cylinder.
The remaining apparatus do not give an accurate measurement because readings are not marked on them.
Ionic compounds have a strong force of attraction between the oppositely charged ions, so a lot of energy is needed in order to break the strong bonding force between those ions.
Answer : The boiling point of the solution is
Explanation :
Formula used for Elevation in boiling point :
or,
where,
= boiling point of solution = ?
= boiling point of water =
= boiling point constant of water =
m = molality
i = Van't Hoff factor = 1 (for non-electrolyte)
= moles of solute (ethylene glycol) = 0.75 mole
= mass of solvent (water) = 1 kg
Now put all the given values in the above formula, we get:
Therefore, the boiling point of the solution is