Presentation is loading. Please wait.

Presentation is loading. Please wait.

Section 2.8 Naming Inorganic Compounds. Chemical Nomenclature Naming system of substances Latin: ◦ Nomen~ nameCalare~ to call Two main categories: ◦ Organic.

Similar presentations


Presentation on theme: "Section 2.8 Naming Inorganic Compounds. Chemical Nomenclature Naming system of substances Latin: ◦ Nomen~ nameCalare~ to call Two main categories: ◦ Organic."— Presentation transcript:

1 Section 2.8 Naming Inorganic Compounds

2 Chemical Nomenclature Naming system of substances Latin: ◦ Nomen~ nameCalare~ to call Two main categories: ◦ Organic and Inorganic

3 Inorganic Compound Rules Ionic MolecularAcids

4 Ionic Compounds Cations Anions Compounds

5 Ionic Compounds 1. Cations ◦ a) Same name as the metal they formed from:  Na + sodium ion ◦ b) Metals forming different cations: use Roman numerals in parentheses:  Fe 2+ iron (II) ion  Fe 3+ iron (III) ion ~ Older method: -ous or –ic ending Fe 2+ ferrous ion Fe 3+ ferric ion

6 Ionic Compounds c) Cations formed from nonmetal atoms have names that end in –ium NH 4 + ammonium ion H 3 O + hydronium ion

7 Ionic Compounds 2. Anions ◦ a) Monoatomic anions are formed by replacing ending of name of element with –ide  O 2- oxide  N 3- nitride ◦ b) Polyatomic anions contain oxygen (oxyanions) end in –ate or –ite  NO 3 - nitrate  NO 2 - nitrite

8 Ionic Compounds ◦ b) Polyatomic anions contain oxygen (oxyanions) end in –ate or –ite ◦ -ite has one fewer O atoms than an –ate  NO 3 - nitrate  NO 2 - nitrite ◦ Prefixes per- and –hypo are used when there are more than four members  ClO 4 - perchlorate  ClO 3 - chlorate  ClO 2 - chlorite  ClO - hypochlorite

9 Ionic Compounds c) Anions derived from adding H+ to an oxyanion: begin with either hydrogen or dihydrogen  CO 3 2- carbonate  HCO 3 - hydrogen carbonate  PO 4 3- phosphate  H 2 PO 4 3- dihydrogen phosphate

10 Ionic Compounds 3. Compounds ◦ Names consist of the cation name followed by the anion name  CaCl 2 calcium chloride  AlPO 3 aluminum phosphite  CuSO 4 copper (II) sulfate

11 Acids -ides -ates /-ites

12 Acids 1. With anions ending in –ide: change –ide to –ic, add the prefix hydro-, and follow with the word acid AnionCorresponding Acid Cl- (chloride)HCl (hydrochloric acid) S2- (sulfide)H2S (hydrosulfuric acid

13 Acids 2. With anions ending in –ate or –ite: ◦ Change –ate to –ic ◦ Change –ite to –ous ◦ Add the word acid AnionCorresponding Acid ClO 4 - (perchlorate)HClO 4 (perchloric acid) ClO 3 - (chlorate)HClO 3 (chloric acid) ClO 2 - (chlorite)HClO 2 (chlorous acid) ClO - (hypochlorite)HClO (hypochorous acid)

14 Molecular Compounds (Binary) 1. Name the element farther to the left in the periodic table first. 2. If both in same group, the one with the higher atomic number is named first. 3. Name the second with an –ide ending 4. Greek prefixes are used to indicate number of atoms of each element

15


Download ppt "Section 2.8 Naming Inorganic Compounds. Chemical Nomenclature Naming system of substances Latin: ◦ Nomen~ nameCalare~ to call Two main categories: ◦ Organic."

Similar presentations


Ads by Google