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Acids and Bases. Names and Formulas. Binary Acids. Binary acids are made of two ions. The first ion (cation) is always H + . Change hydrogen to hydro- Replace the ending, – ide, on the second ion (anion) with –ic. Naming Binary Acids. Example: Formula: HCl

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Acids and bases

Acids and Bases

Names and Formulas


Binary acids
Binary Acids

  • Binary acids are made of two ions.

    The first ion (cation) is always H+.

    Change hydrogen to hydro-

    Replace the ending, –ide, on the second ion (anion) with –ic.


Naming binary acids
Naming Binary Acids

Example:

Formula: HCl

H+ hydrogen = hydro-

Cl- chloride = chloric

hydro-chlor-ic

hydrochloric acid


Writing binary inorganic acid formulas
Writing Binary Inorganic Acid Formulas

  • The first ion (cation) is always hydrogen, H+.

  • The second ion (anion) is usually from Group VII A (halogen).

  • Exception: Group VIA - S (sulfur).


Binary acid formula
Binary Acid Formula

Example: hydroiodic acid

cationanion

H+ I-

Formula: HI


Oxyacids
Oxyacids

Oxyacids contain hydrogen, oxygen and a third element (usually a nonmetal).

The first ion (cation) is always H+

The second ion (anion) is a polyatomic

ion.


Naming oxyacids i
Naming Oxyacids I

  • If the anion name ends in

    –ate, the suffix –ic is added to the root name.


Example hno 3 h no 3
Example: HNO3 H+ NO3-

NO3- , is the anion. nitrate,

Replace –ate with –ic nitric

Add “acid” = nitric acid

HNO3


Naming oxyacid acids ii
Naming Oxyacid Acids II

  • If the anion name ends in

    –ite, the suffix –ous is added to the root name.


One less oxygen hno 2
One less oxygen? HNO2

NO2- , is the anion. nitrite,

Replace –ite with –ous

= nitrous

Add “acid” = nitrous acid

HNO2


Try these
Try These

  • H2SO4

  • H2SO3


Example h 2 so 4
Example: H2SO4

  • SO42- = sulfate ion S = sulfur

  • Replace –ate with –ic = sulfuric

    Add “acid” = sulfuric acid

    H2SO4


One less oxygen h 2 so 3
One less oxygen? H2SO3

SO32- = sulfite ion S = sulfur

Replace –ite with –ous = sulfurous

Add “acid” = sulfurous acid

H2SO3


Writing oxyacid formulas
Writing Oxyacid Formulas

  • The first ion (cation) is always hydrogen, H+.

  • The second ion (anion) is a polyatomic ion.


Writing an oxyacid formula
Writing an Oxyacid Formula

Example: phosphoric acid

cationanion

H+ PO43-

Formula = H3PO4


Naming inorganic bases
Naming Inorganic Bases

Don’t change the name of the lst ion.

The last name of a base will always be hydroxide.

Examples:

NaOH = sodium hydroxide

(NH4)OH = ammonium hydroxide


Writing formula for an inorganic base
Writing Formula for an Inorganic Base

Example: zinc hydroxide

cationanion

Zn2+ OH-

Formula: Zn(OH)2


Name the acids
Name the Acids

Put in Classwork/Homework Notebook

1. HF 5. HClO3

2. HBr 6. HIO4

3. HC2H3O2 7. HIO3

4. H2S 8. HIO2


Write formulas for the acids
Write formulas for the acids

Put in your Classwork/Homework Notebook.

  • Hydrosulfuric acid

  • Carbonic acid

  • Hypochlorous acid

  • Hypoiodous acidd

  • Perchloric

  • Chlorous acid


Naming bases
Naming Bases

Put in Classwork/Homework Notebook

1. LiOH 6. Ba(OH)2

2. KOH 7. Al(OH)3

3. RbOH 8. Fe(OH)3

4. Ca(OH)2 9. CsOH

5. Sr(OH)2


Write formulas for bases
Write Formulas for Bases

Put in your Classwork/Homework Notebook.

  • Chromium (III) hydroxide

  • Mercury(II) hydroxide

  • Nickel (II) hydroxide

  • Tin (II) hydroxide

  • Cobalt (III) hydroxide


Answer check
Answer Check

Be prepared to share answers in class tomorrow.


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