Testing pH This is the title part This is the title part.
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Testing pH Testing pH This is the title part This is the title part
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Transcript of Testing pH This is the title part This is the title part.
Testing pHTesting pH
This is the title part This is the title part
IntroductionIntroduction
Background:Background: Universal indicator paper changes Universal indicator paper changes
color depending on the pH of the color depending on the pH of the solution.solution. Acidic things have a low pH and lots of Acidic things have a low pH and lots of
Hydrogen. (0-6)Hydrogen. (0-6) Basic things have a high pH and a low Basic things have a high pH and a low
amount of Hydrogen. (8-14)amount of Hydrogen. (8-14) Things that are neutral are at 7Things that are neutral are at 7 pH is a scale of 0-14pH is a scale of 0-14
HypothesisHypothesis
Which substances that you have do Which substances that you have do you think will be basic, neutral, and you think will be basic, neutral, and acidic?acidic?
Why? (based on what you know Why? (based on what you know about them and observations you about them and observations you have had with these substance)have had with these substance)
Materials and EquipmentMaterials and Equipment Beakers Beakers pH indicator paperpH indicator paper Lemon juiceLemon juice VinegarVinegar Window cleanerWindow cleaner MouthwashMouthwash MilkMilk WaterWater Detergent and waterDetergent and water
ProcedureProcedure
Test each solution with a new pH Test each solution with a new pH paper indicator strip.paper indicator strip.
Write down the results or each test.Write down the results or each test. Construct a pH scale ranging from 0-Construct a pH scale ranging from 0-
1414 Place the solutions on this scale.Place the solutions on this scale.
Analyze your dataAnalyze your data
Were your hypothesis correct?Were your hypothesis correct? Which ones did you have correct?Which ones did you have correct? Which ones did you have incorrect Which ones did you have incorrect
and why do you think?and why do you think?
Conclusions and Error AnalysisConclusions and Error Analysis
Did any of these substances surprise Did any of these substances surprise you?you?
What did you find out about cleaning What did you find out about cleaning agents?agents?
Could you have done anything better or Could you have done anything better or did you make any mistakes?did you make any mistakes?
What would you do differently next time?What would you do differently next time? Make a new hypothesis or what do you Make a new hypothesis or what do you
want to test for next time?want to test for next time?
