Tech Acid and Bases

  

Topic 8 Acid and Bases Question What is pH? pH is a measure of a substance How do you measure pH? electrochemical measuring systems and more What is the scale pH is measured on? the measurement of hydrogen ion turned into a liquid solution What pH level does water have?  pH 7 Is water acid, basic or neutral? Neutral What is the most acid pH level? pH 0 What is the most basic pH level? pH 14 0-6 = acidic 7 = neutral 8-14 = basic If a substance has more hydrogen ions then it is acidic. If a substance has more hydroxide ions then it is acidic. Ions are charged up atoms

Experiment Aim or Purpose: test pH levels in different house hold products Equipments Well plate pH ships pH charitable Dropper Products Baking soda Distilled water Window cleaner Toilet bowl cleaner Lemon juice Milk Orange Juice  Apple Juice Vinegar Detergent Tea Coffee

Substance	Acid base	Colour changes	Ion result
Milk	B	Red-red blue-red	Acid
Tea	B	Red-red blue-red	Acid
Baking soda	B	Red-blue blue-blue	base
Window cleaner	A	Blue-red red-red	Acid
detergent	A	Blue-blue red-red	Neutral
Toilet cleaner	A	Red-red blue-red	Acid
orange	A	Blue-red red-red	Acid
lemon	A	Red-red blue-red	Acid
apple	A	Blue-red red-red	Acid
Distilled water	N	Red-red blue-red	Acid
Vinegar	A	Blue-red red-red	Acid