Chapter 4 Objectives - Chapter 4 Objectives: Strong...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 4 Objectives: Strong Electrolyte: ionizes completely, conducts electricity (strong), Soluble ionic compounds are strong electrolytes (NaCl, HCl, HCl, HBr, HI, H 2 SO 4 (1 st ionization), HNO 3, HClO3, HClO4, LiOH, NaOH, KOH, Ba(OH)2 Non-Electrolyte: does not ionize completely, no conduct electricity (pure water, sucrose C12H22O11, ethanol C 2 H 6 O , methanol C H 3 OH ) substances that remain molecules when dissolved in water Weak Electrolyte: solutes exist in solution mainly in form of molecules w/ only a small fraction in the form of ions, dim electricity (weak), doenst ionize completely (NH3 Ammonia, CH3OOH acidic acid) Solubility Rules: Solubility- how much solute can dissolve in a given quality of solvent (solvent=greatest quantity) Soluble- 0.01 (mol/L) Insoluble- less than 0.01 (mol/L); substance remains undissolved Negative Ions (Anions) + Positive Ions (Cations) = Solubility of compounds in water Example any anion + alkali ions (Li + ,Na + ,K + ,Rb + ,Cs + ,Fr + ) = soluble sodium fluoride, NaF, is soluble any anion + hydrogen ion [H + (aq) ] = soluble hydrogen chloride, HCl, is soluble any anion + amonium ion (NH 4 + ) = soluble ammonium chloride, NH 4 Cl, is soluble nitrate NO 3 - + any cation = soluble potassium nitrate, KNO 3 , is soluble acetate (CH 3 COO - ) + any cation = soluble sodium acetate, CH 3 COONa, is soluble Chloride (Cl - ), Bromide (Br - ), Iodide (I - ) + silver (Ag + ), lead (Pb 2+ ), mercury (Hg 2+ ), copper (Cu + ), thallium (Tl + ) = low solubility (insoluble) silver chloride, AgCl, forms a white precipitate (a white solid) + any other cation = soluble potassium bromide, KBr, is soluble Sulphate (SO 4 2- ) + calcium (Ca 2+ ), strontium (Sr 2+ ), barium (Ba 2+ ), silver (Ag + ), lead (Pb 2+ ), radium (Ra 2+ ) = low solubility (insoluble) barium sulphate, BaSO 4 , forms a white precipitate (a white solid) + any other cation
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/29/2008 for the course CHEMISTRY 221 taught by Professor Richardson during the Spring '08 term at Oregon State.

Page1 / 5

Chapter 4 Objectives - Chapter 4 Objectives: Strong...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online