Testing Ph

AIM: To test the pH range of household chemicals

Equipment: A variety of household chemicals, spotting tile, red litmus paper, blue litmus paper, Universal indicator soloution, safety glasses.

Method:
1:add a few drops of each chemical to a spot on your spotting tile. if a subtance is solid or powdered you will need to add a few drops of water before testing it.
2:test the chemicals with the blue and red litmus paper.
3. Test each chemical with a few drops of universal indicator.

Results:

Chemical being tested	Colour in blue litmus paper	Colour in red litmus paper	Colour in Universal indicator
Toilet cleaner	It went red	Nothing	Red
Dish soap	Went red	Nothing	Yellow
Spray n Wipe	Went red	Blue	Blue
Baking soda	Nothing	Nothing	Blue

Discussion: So back we did this experiment we got everything we needed and we got to work. After it was all set up we got to add the indicator into one of each of the little half spheres to tell us what the pH level was. In the next row of treys we added blue litmus paper and if it went red it means its an acid and if it stayed blue it is either a base or a neutral substance. The final one we added red litmus paper and it is the same as the blue but in reverse. With the universal indicator the more red it goes it means the stronger an acid and the more blue - violet it goes it means the stronger the base it is. 

Conclusion:                                                                                       Evidence from the investigation

Chemical being tested	Acid or base
Toilet cleaner	Acid	It went red with indicator and blue litmus paper
Dish soap	Acid	It went red with indicator and blue litmus paper
Spray n Wipe	Base	It went Blue with indicator and Red litmus paper
Baking soda	Base	It went Blue with indicator and Red litmus paper