List of Topics

SfC Home > Physical Science > Chemistry >

 

Mini-Quiz: pH Scale

by Ron Kurtus (30 May 2006)

Take this Mini-Quiz to check your understanding of the lesson material.



1. Why is the pH of pure water equal to 7.0?

It is 7.0 times as strong as unpure water

Water has 7 Hydrogen atoms

7.0 on the pH scale means neutral

2. If the pH of ammonia is 11.5 and bleach is 12.5, how much more alkaline is the bleach?

10 times, since 1 on the logarithmic scale represents tenfold

1.0, since 12.5 minus 11.5 equals 1.0

10,000,000 times

3. How do you use litmus paper?

You write on it to keep records of acids and bases

You wet it with a substance to see if it is an acid or base

You place it in a substance to change the liquid to an acid or a base

If you got all three correct, you are on your way to becoming a Champion in Chemistry. If you had problems, you had better look over the material again.


Try some tests


Resources and references

Ron Kurtus' Credentials

Websites

Chemistry Resources

Books

Top-rated books on Chemistry

Products

Purchase litmus paper


Questions and comments

Do you have any questions, comments, or opinions on this subject? If so, send an email with your feedback. I will try to get back to you as soon as possible.


Share

Click on a button to bookmark or share this page through Twitter, Facebook, email, or other services:

 

Students and researchers

The Web address of this page is:
www.school-for-champions.com/chemistry/
mini-quiz_ph_scale.htm

Please include it as a link on your website or as a reference in your report, document, or thesis.

Copyright © Restrictions


Where are you now?

School for Champions

Chemistry topics

Mini-Quiz: pH Scale




Chemistry topics

Basics

Ingredients

Tools

Recipe

Mixing things together

Cooking

Graded tests

Also see



Let's make the world a better place

Be the best that you can be.

Use your knowledge and skills to help others succeed.

Don't be wasteful; protect our environment.

You CAN influence the world.





Live Your Life as a Champion:

Take care of your health

Seek knowledge and gain skills

Do excellent work

Be valuable to others

Have utmost character

Be a Champion!



The School for Champions helps you become the type of person who can be called a Champion.