test 2 Flashcards by Katie Roberts

Q

Three classes of aqueous reactions

A

Precipitation, Acid-Base, Redox

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Q

More ionize

A

STRONGER THE ELECTROLYTE

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Q

Molarity

A

mol solute

L of solution

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Q

precipitation reactions

A

to solutions create a solid when mixed

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Q

6 Strong Acids

A

HBr, HCl, HI, HNO3, HClO4,H2SO4

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Q

Bases produce ________ in water

A

OH^- in water

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Q

pH=

A

-log[H^+]

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Q

pOH=

A

-log [OH^-]

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Q

pH + pOH=

A

14

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Q

Strong Acid + Strong base

A

H^+ + OH^- = water

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Q

Weak Acid + Strong Base

A

HA(aq) + OH^-(aq) = A^- + water

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Q

Strong Acid + Weak Base

A

H^+(aq) + B(aq) = HB^+

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Q

Reduction

A

gain electrons, become more negative, oxidation number decreases

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Q

oxidation

A

lose electrons, become more positive, increases

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Q

reducing agent is

A

oxidized

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Q

oxidizing agent is

A

reduced

Q

group 1 oxidation numbers

A

+1 always

Q

Group 2 oxidation number

A

+2 always

Q

F oxidation number

A

-1 always

Q

H oxidation number

A

+1 usually

Q

O oxidation number

A

-2 usually

Q

Cl, Br, I oxidation number

A

-1 usually

Q

speed of light (3.0x10^8 m/s)

A

wavelength X frequency

Q

E=

A

plank’s constant x frequency= plank’s constant x speed of light / wavelength

Q

dela E =

A

R(sub H) [1/n(sub2)^2 + 1/n(sub1)^2

Q

R (sub H)=

A

2.18x10^-18 J Rydberg constant