Free Powerpoint Presentations

Acids & Bases
Page
1

DOWNLOAD

PREVIEW

WATCH ALL SLIDES

Slide 1

Acids & Bases

Acids & Bases

By Robert McGee

Slide 2

Our Goals for today

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

Slide 3

What is the pH scale?

What is the pH scale?

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

Slide 4

The pH scale

The pH scale

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

Slide 5

Identifying Acids and Bases

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.

Slide 6

Definitions of Acids and Bases

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.

Slide 7

Did we Miss something??

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!

Slide 8

Test Your Knowledge

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

Slide 9

Characteristics Of Acids

Characteristics Of Acids

Acids can be characterized by:

A sour taste.

It turns blue litmus paper red

It tastes sour. Try drinking lemon juice (citric acid)

Slide 10

Characteristics of Bases

Characteristics of Bases

A Base is characterized by:

A bitter taste. (Milk of Magnesia)

It feels slippery. (Soapy Water)

It turns Red Litmus Blue.

Slide 11

Why Learn about Acids & Bases?

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?

Slide 12

Go to page:
 1  2 

Contents

Last added presentations

© 2010-2018 powerpoint presentations