Chemistry Chapter 5: Phases, Gases and Solutions Flashcards

1
Q

Why would HF have a small effect on the boiling point of water compared to HI, HCl and HBr

A

The boiling point of a solution depends on the number of particles of solute present in solution.

Hydrochloric acid hydrobromic acid hydroidic acid are strong acids

HF is weak and doesn’t completely dissociate

When each acid breaks down, it dissociates into 2 moles of ions per mole of solute dissolved particles from HF

Therefore, there are fewer

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2
Q

A colligative property is a property that is dependent on the

A

ratio of solute to solvent concentration, but not the identity of the solute (or the solvent).

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3
Q

How does polarity, molecular weight affect osmosis

A

Polarity and molecular weight don’t affect osmosis

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4
Q

Supersaturation

A

a state where a solution contains more of the dissolved material than could be dissolved by the solvent under normal circumstances. If a supersaturated system is perturbed, the excess solute will crystallize (i.e. precipitate) out of solution and onto the glass rod

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