Acids And Bases: Common Household Products Lab (Page 2 of 3) in pdf

Acids And Bases: Common Household Products Lab Page 2

Name:________________________________

Date:________

Data Table

Solution

Red

Blue

Hydrion

Acid/Base/

Litmus

paper

Neutral

Distilled

Red

Blue

Yellow(ish)

Neutral

Water

Ammonia

Vinegar

Detergent

Baking

soda

Soft Drink

Lemon

juice

NaClO

(bleach)

HCl

Indicators are substances that react to a change in H

concentration by

changing color. Some are naturally occurring such as red cabbage, red rose

petals, and tea. Commercial indicators include litmus paper, pH paper,

universal indicator solution, bromothymol blue, phenolphthalein, and others.

Litmus is red in the presence of an acid, and blue in the presence of a base.

Universal indicator solution and pH paper have a range of colors that

correspond to pH values from 1 to 12. Bromothymol blue is yellow in an

acid, green in pH 7 and blue in a base. Phenolphthalein is colorless in an acid

and pink in a base.

Questions:

1. What was the pH of distilled water?

2. Why do you think distilled water was used to dilute the substances?

Acids And Bases: Common Household Products Lab Page 2