Solubility Flashcards

1
Q

what is solubility

A

how much of a solvent will dissolve in solvent

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2
Q

explain unsaturated, saturated and supersaturated

A

UNSATURATED - more solute dissolves (more can come)
SATURATED - no more solute dissolves (max amount)
SUPERSATURATED - unstable, crystals form (more than max amount)

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3
Q

discuss the solubility trend for most solids

A

solubility increases as temp increases (NaCL, KNO3)

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4
Q

discuss the solubility trend for gasses dissolved in water

A

solubility decreases as temp increases
with more heat = more kinetic energy so gas molecules get excited and leave the liquid solution
lower temp = less KE so gas molecules cant leave the water solution (02 in H2O)

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5
Q

what is an electrolyte

A

compounds that form ions when dissolved in H2O (precipitate)

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6
Q

what is a strong electrolyte (examples)

A

all solute is present as ions (ionic compounds)

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7
Q

what is a non electrolyte (examples)

A

solute present as neutral molecules no ions (covalent molecules)

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8
Q

what is a weak electrolyte (examples)

A

solute presents as ions and neutral molecules (weak acids)

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9
Q

describe a precipiate reaction

A

2 solutions mixed and solid forms

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