Acids and Bases and pH How can we use acids and bases in our everyday lives?

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Presentation transcript:

Acids and Bases and pH How can we use acids and bases in our everyday lives?

Acids and Bases Acids and Bases Song

Demonstration It’s Magic!! Phenolphthalein is an indicator of acids (colorless) and bases (pink).

Acids Tastes sour Reacts with metals and carbonates Turns BLUE litmus paper red H+ (hydrogen ion) Hydrochloric Acid HCl Sulfuric AcidH 2 SO 4 Acetic AcidHC 2 H 3 O 2 Acids produce hydrogen ions in water

Bases Taste bitter Feels slippery Turns RED litmus paper blue OH¯ (hydroxide ion) Sodium Hydroxide NaOH Potassium Hydroxide KOH Aluminum Hydroxide Al(OH) 3 Bases produce hydroxide ions in water

pH Scale Acids and Bases Video Measures the concentration of hydrogen ions in a solution. Ranges from 0-14 –0=Acid (0-6.9) –7= Neutral (7) –14=Base (7.1-14)

pH A low pH – concentration of hydrogen ions is high.(0) A high pH – concentration of hydrogen ions is low. (14)

Neutralization Reaction An acid plus a base produces a salt and a water. HCl + NaOH NaCl + H 2 O

EQ: How can we use acids and bases in our everyday lives?

Summarizer How can we use acids and bases in our everyday lives?