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Chemistry > Final > Flashcards

Final Flashcards

1
Q

Solution

A

Homogenous liquid

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2
Q

solute

A

substance being dissolved

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3
Q

solvent

A

substance doing the dissolving

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4
Q

saturated

A

solute @ max. concentration

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5
Q

unsaturated

A

solute can still be added

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6
Q

g/L

A

g/solute/ 1L of solution

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7
Q

% (Solid/ liq.)

A

g of solute per 100g of solution

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8
Q

p.p.m.

A

mg solute / g solution OR mg solute/ Kg of solution

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9
Q

supercritical fluid

A

gas can no longer be compressed

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10
Q

alloy

A

MIXTURE OF 2+ METALS

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11
Q

solubility

A

how much solute can be dissolved in a solvent

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12
Q

“like tends to dissolve into like”

A

polar/ ionic substances dissolve in water

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13
Q

non polar dissolve in

A

oil/ kerosene

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14
Q

super saturated solution

A

more solute than normally possible (unstable)

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15
Q

miscible/ immiscible

A

when 2 liquids do/ don’t mix together

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16
Q

Mole fraction

A

x = moles solute/ moles solvent

17
Q

molarity

A

mols of solute/ 1 kg of solvent

18
Q

High boiling point

A

strong intermolecular strength

19
Q

Melting pt.

A

high melting pt. = strong internal. force

20
Q

Van Der Waals

A

weakest I’m force between neutral molecules (instantaneous dipoles)

21
Q

dispersion forces

A

increase as molecular weight increases

22
Q

Hydrogen bonding

A

intermolecular dipole- dipole attraction (DNA)

23
Q

Properties of Water

A
  1. High Surface tension
  2. high heat of Vape.
  3. Liquid in most circumstances
  4. superior solvent
  5. solid has lower density than liquid (ice floats)
24
Q

Viscousity

A

resistance of a liquid to flow

25
Q

Surface tension

A

bulk molecules arranged most dense at the surface

26
Q

Cohesion

A

forces holding molecules together

27
Q

Adhesion

A

bind molecules to a surface

Chemistry (11 decks)

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