Solubility Rules Flashcards

1
Q

Sodium

A

Always soluble

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2
Q

Potassium

A

Always soluble

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3
Q

Lithium

A

Always soluble

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4
Q

Rubidium

A

Always soluble

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5
Q

Cesium

A

Always soluble

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6
Q

Ammonium

A

Always soluble

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7
Q

Alkali metals (general rule)

A

All soluble

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8
Q

Nitrates

A

NO3^-

Generally soluble

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9
Q

Chlorates and Perchlorates

A

ClO3^-
ClO4^-
Generally soluble

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10
Q

Bicarbonates

A

HCO3^-

Generally soluble

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11
Q

Acetates

A

CH3COO^- or C2H3O2^-

Generally soluble

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12
Q

Chlorides

A
Cl^-
Generally soluble EXCEPT with:
Pb^+2
Hg2^+2
Ag^+
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13
Q

Bromides

A
Br^-
Generally soluble EXCEPT with:
Pb^+2
Hg2^+2
Ag^+
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14
Q

Iodides

A
I^-
Generally soluble EXCEPT with:
Pb^+2
Hg2^+2
Ag^+
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15
Q

Neutral halides (general rule)

A

Generally soluble EXCEPT with:
Pb^+2
Hg2^+2
Ag^+

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16
Q

Sulfates

A
SO4^-2
Generally soluble EXCEPT with:
Pb^+2
Hg2^+2
Ag^+
Ca^+2
Sr^+2
Ba^+2
17
Q

Silver

A
Generally insoluble EXCEPT with:
NO3^-
ClO3^-
ClO4^-
CH3COO^-
18
Q

Hydroxide

A

Generally insoluble except with:
Group I and Ba^+2
Group II (slightly soluble)
Think strong bases.

NH4+

19
Q

Transition metals (and silver) hydroxides

A

Always insoluble

20
Q

Carbonates

A

CO3^-2
Insoluble EXCEPT with:
Alkali metals and NH4^+

21
Q

Phosphates

A

PO4^-3
Insoluble EXCEPT with:
Alkali metals and NH4^+

22
Q

Sulfites

A

SO3^-2
Insoluble EXCEPT with:
Alkali metals and NH4^+

23
Q

Chromates

A

CrO4^-2
Insoluble EXCEPT with:
Alkali metals and NH4^+

24
Q

Sulfides

A
S^-2
Insoluble EXCEPT with:
Alkali metals 
NH4^+
Ba^+2
25
Q

Mercury (I)

A
Hg2^+2
Generally insoluble EXCEPT with:
NO3^-
ClO3^-
ClO4^-
CH3COO^-
26
Q

Lead (II)

A
Generally insoluble EXCEPT with:
NO3^-
ClO3^-
ClO4^-
CH3COO^-
27
Q

Fluorides

A

Generally insoluble