We use cookies to give you the best experience possible. By continuing we’ll assume you’re on board with our cookie policy

PH Lab Report

essay
The whole doc is available only for registered users OPEN DOC

A limited time offer! Get a custom sample essay written according to your requirements urgent 3h delivery guaranteed

Order Now

Background information/Research
PH paper (litmus paper) determines how acidic or how basic a substance is. The paper changes color accordingly to color code on the pH scale. The pH scale starts from 0 to 14. The lower the number the more acidic it is. Zero is the most acidic, and 14 is the most basic while 7 is the neutral number for example water. Examples of an acid is lemon juice or multi purpose cleaner. Examples of a basic substance is shampoo or liquid soap. We use pH for the products we use and food that we eat to check if it is safe to use for us humans and not harm us. With pH, products have become safer and less harmful to our environment and ourselves.

Materials
Various indicators
● Bro blue
● Phe red
● Met red
● Methyl blue
● Met orange
● Methyl yellow
Various unknowns
Watch trays

Procedures
1. Take 6 indicators that are all different colors.
2. Take the 4 unknowns numbered 1­4
3. Take a watch tray and wash it down before using it.
4. Put the indicator that is numbered 1in 6 slots on the watch tray. (Only put in one drop)
5. Take each indicator and put it in 1 slot each, each slot should have a different indicator color. (Again only one drop)
6. Record results and observations down on a table. Observe if it changed color, if it changed from one color to another. Record the pH number average and what color it is.
7. Wash down the watch tray again so you do not mix chemicals, or else your data will be inaccurate.
8. Repeat steps 4­7 for the last 3 unknowns.

Results
After the LAB i had various different results for each indicator reaction to the unknowns. All together i had 24 results, 6 results for each unknown. A couple of the indicators reacted to the unknown differently than the others. They started to change one color, then a bit later it would change to a different color. The indicators that did that were Methyl yellow to unknown 1 and 4, Methyl blue to unknown 2, Met red to unknown 1 and 4, Phe red to unknown 2 and 3, and none for Bro blue.

Test 1
Bro Blue

Test 2
Phe Red

Test 3
Met Red

Test 4
Methyl
Blue

Test 5
Met
Orange

Test 6
Methyl
Yellow

Unknown
1

Blue
(3.6)
No change

Yellow
(6.4)
No change

Red
(5.0)
Turns pink

Green blue
(7.1)
No change

Red orange Yellow
(3.5)
(3.2)
No change Turns red

Unknown
2

Dark Blue
(4.3)
No change

Violet
(7.6)
Turns clear

Clear
(6.2)
No change

Dark blue
(6.8)
Turns sky
blue

Clear
(4.4)
No change

Light
yellow
(4.0)
No change

Unknown
3

Dark blue
(4.3)
No change

Yellow
(8.0)
Turns red

Light
yellow
(6.2)
No change

Blue
(7.6)
No change

Yellow
(4.4)
No change

Yellow
(4.0)
No change

Unknown
4

Purple
(4.6)
No change

Yellow
(6.4)
No change

Related Topics

We can write a custom essay

According to Your Specific Requirements

Order an essay
Get Access To The Full Essay
icon
300+
Materials Daily
icon
100,000+ Subjects
2000+ Topics
icon
Free Plagiarism
Checker
icon
All Materials
are Cataloged Well

Sorry, but copying text is forbidden on this website. If you need this or any other sample, we can send it to you via email.

By clicking "SEND", you agree to our terms of service and privacy policy. We'll occasionally send you account related and promo emails.
Sorry, but only registered users have full access

How about getting this access
immediately?

Become a member

Your Answer Is Very Helpful For Us
Thank You A Lot!

logo

Emma Taylor

online

Hi there!
Would you like to get such a paper?
How about getting a customized one?

Can't find What you were Looking for?

Get access to our huge, continuously updated knowledge base

The next update will be in:
14 : 59 : 59
Become a Member