PH Scale

Today in Science we learnt to understand the pH scale which is composed of Acids and Alkalines,
the different strengths of those chemicals and what they are made of in atomic measures.

We had to complete two task which are shown below. For the second task we had to make a similar pH scale but it would need to include common chemicals that we do know.

Task 1

Complete the quiz below

Neutral solutions have a pH of 0 7 14

What colour represents neutral on the pH scale Blue Red                 Green

What is the range covered by the pH scale 0-14 -10 - 10 0-100

pH is a measure of _________ ions Oxygen Hydrogen Hydroxide

Acids and bases can combine to create water and salts True False

Which is not a property of a base Sour taste Bitter taste Slippery

There are a variety of strengths of acids and bases True False

Vinegar is an example of a Strong base Strong Acid Weak Acid

An acid’s pH is between 0-7 7-14 14-21

What is true when acids and bases neutralize each other;

Water is produced Salt is produced Both water and salt are produced

Does baking soda have a pH of 9?   Explain your answer: you may not raise             

No                                                                                 the alkalinity of baking soda above 8.4.

Task 2

Create a doc illustrating the pH scale.

  

1: Lime juice

2: Coca cola

3: Strawberries

4: Honey

5: Sugar

6: Onions

7: Egg yolks

8: Milk

9:Baking soda