Home > Acids & Bases

Acids & Bases


 
 

Acids & Bases 

By Robert McGee


 
 

Our Goals for today 

  • To determine the difference between Acids & Bases
  • Discuss the importance of studying Acids & Bases 
  • Perform an experiment dealing with Acids & Bases 
 
 

What is the pH scale? 

  • The pH scale measures how acidic or basic a solution is.
 
 

The pH scale 

  • The pH scale is the concentration of hydrogen ions in a given substance.
 
 

Identifying Acids and Bases 

  • Acids have a ph from 0-7
  • Lower pH value indicates a stronger acid.
  • Bases have a pH from 7-14 
  • Higher pH value indicates a stronger base.

 


 
 

Definitions of Acids and Bases 

  • An acid is a substance that breaks into         ions in an aqueous solution.
  • A Base (alkaline) is a substance that breaks into           ions in an aqueous solution. 
  • Note: aqueous solution is any solution where           is the solvent.
 
 

Did we Miss something?? 

  • What happens when the pH of a substance is 7?
  • Ans: A pH level of 7 indicates a Neutral Substance i.e: Water! 
 
 

Test Your Knowledge 

  • What is the range of an ACID on the pH scale?

Ans: 0-7 

  • What is the range of a BASE and what is another name for a BASE?

Ans: 7-14, Alkaline


 
 

Characteristics Of Acids  

    Acids can be characterized by: 

  1. A sour taste.
  1. It turns blue litmus paper red 
  1. It tastes sour. Try drinking lemon juice (citric acid) 

 


 
 

Characteristics of Bases 

    A Base is characterized by: 

  1. A bitter taste. (Milk of Magnesia)
  1. It feels slippery.  (Soapy Water) 
  1. It turns Red Litmus Blue. 
 
 

Why Learn about Acids & Bases? 

  • What do you think is the pH level of NYC tap water?
  • The pH of a swimming pool must be checked periodically. Why? 
  • Is it important for Lakes & Rivers to maintain a certain pH? 
 
 

Todays Experiment 

  • Test the pH of Pepsi, tap water, and drain cleaner
  • GOOD LUCK!!! 
     
Search more related documents:Acids & Bases
Download Document:Acids & Bases

Set Home | Add to Favorites

All Rights Reserved Powered by Free Document Search and Download

Copyright © 2011
This site does not host pdf,doc,ppt,xls,rtf,txt files all document are the property of their respective owners. complaint#downhi.com
TOP