Acids and bases
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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

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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. HF5. HClO3

2. HBr6. 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. KOH7. Al(OH)3

3. RbOH 8. Fe(OH)3

4. Ca(OH)29. 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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