Your SlideShare is downloading. ×
0
Chapter 5.3<br />Names and Formulas of Ionic Compounds<br />
Objectives<br />Name cations, anions, and ionic compounds<br />Write chemical formulas for ionic compounds such that an ov...
Chemical names and Formulas<br />Calcium carbonate – <br />Sodium chloride – <br />Dihydrogen monoxide –<br />These are th...
Chemical formula for ionic compound<br />Ionic compound consists of lattice of positive and negative ions held together by...
Monatomic ions<br />Ions formed from a single atom<br />Examples<br />Na+1		lose one electron<br />Mg2+		<br />S2-		gain t...
Examples
Carbon & Silicon form covalent bonds
d-block elements form variable charges
examples
Copper,  can be Cu+1 or Cu+2
Iron, can be Fe+2 or Fe+3
Lead, can bePb+2, Pb+3, or Pb+4</li></li></ul><li>Naming Monatomic ions<br />Positive ions<br />Name of element<br />Ex:  ...
Base of element +  -ide ending
Upcoming SlideShare
Loading in...5
×

Applied Chapter 5.3 : Names and Formulas of Compounds

4,104

Published on

0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total Views
4,104
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
42
Comments
0
Likes
1
Embeds 0
No embeds

No notes for slide

Transcript of "Applied Chapter 5.3 : Names and Formulas of Compounds"

  1. 1. Chapter 5.3<br />Names and Formulas of Ionic Compounds<br />
  2. 2. Objectives<br />Name cations, anions, and ionic compounds<br />Write chemical formulas for ionic compounds such that an overall neutral charge is maintained.<br />Explain how polyatomic ions and their salts are named and how their formulas relate to their names.<br />
  3. 3. Chemical names and Formulas<br />Calcium carbonate – <br />Sodium chloride – <br />Dihydrogen monoxide –<br />These are their chemical and common names<br />Chemical names help to describe the atomic makeup of the compounds<br />
  4. 4. Chemical formula for ionic compound<br />Ionic compound consists of lattice of positive and negative ions held together by mutual attraction.<br />Chemical formula represented by one unit cell<br />Simplest ratio of the compounds positive and negative ions<br />Aluminum sulfate below consists of aluminum cations and sulfate ions<br />Al2(SO4)3<br />Subscript 3 refers to everything inside the parentheses giving 3 sulfate ions, with a total of 3 sulfur atoms and 12 oxygen atoms<br />Subscript 2 refers to 2 Aluminum atoms<br />Subscript 4 refers to 4 oxygen atoms in the sulfate ion<br />Note: when you only have one of an atom, no subscript is used<br />Note: parentheses are used to identify polyatomic ion as one unit<br />
  5. 5. Monatomic ions<br />Ions formed from a single atom<br />Examples<br />Na+1 lose one electron<br />Mg2+ <br />S2- gain two electrons<br />N-3<br />Cl1-<br /><ul><li>Not all main-group elements readily form ions
  6. 6. Examples
  7. 7. Carbon & Silicon form covalent bonds
  8. 8. d-block elements form variable charges
  9. 9. examples
  10. 10. Copper, can be Cu+1 or Cu+2
  11. 11. Iron, can be Fe+2 or Fe+3
  12. 12. Lead, can bePb+2, Pb+3, or Pb+4</li></li></ul><li>Naming Monatomic ions<br />Positive ions<br />Name of element<br />Ex: K+ Potassium<br /> Mg+2 Magnesium<br /> Al+3 __________<br /> Sr+2 __________<br /><ul><li>Negative ions
  13. 13. Base of element + -ide ending
  14. 14. Ex: F-1 Fluoride</li></ul> N-3 Nitride<br /> O-2 _______<br /> Br-1 _______<br />
  15. 15. Naming binary ionic compounds<br />Nomenclature<br />Naming system<br /><ul><li>Name Al2O3
  16. 16. Name cation first : full name of cation
  17. 17. Aluminum
  18. 18. Name Anion last : base of anion + -ide
  19. 19. oxide</li></ul>Al2O3<br />aluminum oxide<br />
  20. 20. Practice Naming and Writing Formulas<br /><ul><li>Name</li></ul>AgCl<br />ZnO<br />SrF2<br />silver chloride<br />zinc oxide<br />strontium fluoride<br /><ul><li>Write the formulas for</li></ul>Zinc iodide<br />Zinc sulfide<br />Aluminum sulfide<br />ZnI2<br />ZnS<br />Al2S3<br />
  21. 21. Stock System of Nomenclature<br />Some cations may have two or more different charges<br />Use stock system of naming (usually with d-block elements)<br /><ul><li>Roman numeral represents charge in parentheses
  22. 22. Fe+2 Fe+3</li></ul> Iron(II) Iron(III)<br /><ul><li>Some cations that commonly form only one cation
  23. 23. Do not use roman numerals ( main group elements)
  24. 24. No Anions form more than one charge</li></ul>+2<br />-1<br />CuCl2<br />copper(II)<br />chloride<br />
  25. 25. Practice stock system<br />Write formula and give name for compound formed by ions Cr+3 and F-1<br />CrF3<br />chromium(III) fluoride<br /><ul><li>Write formulas and give name for the following ionic compounds:</li></ul>CuBr2<br /> copper(II) bromide<br />Cu+2 and Br-1<br />Fe+2 and O-2<br />FeO<br /> iron(II) oxide<br />Fe+3 and O-2<br />Fe2O3<br /> iron(III) oxide<br />
  26. 26. Compounds containing Polyatomic Ions<br />All but NH4+, ammonium ion, are negatively charged<br />Most are oxyanions<br />Examples<br />NO3-1 NO2-1<br />nitrate<br />nitrite<br /><ul><li>Most common anion has –ate ending
  27. 27. Anion with one less oxygen has –ite ending
  28. 28. Anion with two less oxygen has hypo prefix and –ite ending
  29. 29. Anion with one extra oxygen has per prefix and –ate ending</li></ul>ClO3-1<br />ClO2-1<br />ClO-1<br />ClO4-1<br />hypochlorite<br />perchlorate<br />chlorate<br />chlorite<br />
  30. 30. Naming Compounds with Polyatomic Ions<br />Same as naming for ionic compounds except<br />Name polyatomic ion as one unit<br />Example:<br />AgNO3<br />Use parentheses if more than one polyatomic ion<br />Example<br />Al2(SO4)3<br />silver nitrate<br />Show 2 Al+3 ions and 3 SO4-2 ions<br />aluminum sulfate<br />
  31. 31. Writing Formulas and Naming Compounds with Polyatomic Ions<br />Write the formula for these:<br />tin(IV) sulfate<br />calcium chloride<br />lithium nitrate<br />calcium nitrite<br />potassium perchlorate<br />Sn(SO4)2<br />CaCl2<br />LiNO3<br />Ca(NO2)2<br />KClO4<br /><ul><li>Write the names for these:</li></ul>Ag2O<br />Ca(OH)2<br />NH4OH<br />FeCrO4<br />KClO<br />silver oxide<br />calcium hydroxide<br />ammonium hydroxide<br />iron(II) chromate<br />potassium hypochlorite<br />
  1. A particular slide catching your eye?

    Clipping is a handy way to collect important slides you want to go back to later.

×