Formulas Flashcards

1
Q

Ka

A

Prod
Reacts

Acid ionization constant
Smaller value=weaker acid
To find strength of acid & whether p or r favoured at equilibrium
Only uses aqueous don’t use powers

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2
Q

Kb

A

Base ionization constant
Smaller value=weaker base
The one that ends in OH is always the stronger base
Prod
Reacts
To find strength of base &I if p or r favour at equil

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3
Q

pH

A

Percent of hydrogen
-log(H)
To find H+ pH and strength of acid

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4
Q

pOH

A

Percent hydroxide
-log(OH)
To find pOH and strength of base

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5
Q

Kw

A

Kw=prod1xprod2
Conc.of p over conc. of r’s
Kw=1.0x10-14(power)

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6
Q

When:
H=OH
H>oh
H

A

Neutral
Acidic
Basic

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7
Q

0-7 is acidic
7 is neutral
8-14 is basic

A

Ex. Stomach acid
Ex. Water
Ex. Hand soap

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8
Q

Use kW when missing concentrations

A

Ex. 1x10-14=[h][oh aka8.2x10-6]

H= 1.22x10-9M

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9
Q

Ask about units

A

?

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10
Q

POH +ph=14

A

Higher oh lower h vice versa

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11
Q

14-ph determine pOH

14-pOH determine ph

A

Answer

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12
Q

Equivalence

A

At midpoint int of straight vertical part of graph end point

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13
Q

MaVa=MbVb

A

When 3 given and one missing
Determine missing variable
If mol arty is calculated ph or pOH can be determined

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14
Q

Bro stead Lowry

A

Protons
AD
BA

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15
Q

Lewis

A

Electrons
AA
BD
CO2 is always Lewis acid

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16
Q

Arrhenius

A

Hydrogen or hydroxide
A H
B OH

17
Q

Ask if we need to know xs

A

?