1 / 7

Acids Bases and pH

Acids Bases and pH. Year 8 Science Mr Kos. Acids and Bases. Acids and Bases are found everywhere Common acids include: Hydrochloric Acid Found in Gastric Juice Used to clean bricks Citric Acid Lemon Juice Acetic Acid Vinegar Carbonic Acid Soft Drink.

kare
Télécharger la présentation

Acids Bases and pH

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Acids Bases and pH Year 8 Science Mr Kos

  2. Acids and Bases • Acids and Bases are found everywhere • Common acids include: • Hydrochloric Acid • Found in Gastric Juice • Used to clean bricks • Citric Acid • Lemon Juice • Acetic Acid • Vinegar • Carbonic Acid • Soft Drink

  3. Acids and Bases are found everywhere Common bases include: Soaps and Detergents Lime Antacids

  4. Acids and Bases • Features of Acids • Taste sour (from latinAcidus/acere meaning sour) • Corrosive • React with bases to form salt and water • React with metals to form hydrogen gas • Features of Bases • Taste Bitter • Feel Slippery • Corrosive • Alkalis are bases that dissolve in water • React with acids to form salt and water

  5. Acids and Bases • Definitions of acids • Boyle described them that they neutralise bases and that they are sour • Arrhenius, • Increase H3O+ concentration • Bronsted-Lowry • Donates H+ ion

  6. Acids and Bases • Definitions of bases • Arrhenius, • Increase HO- concentration • Bronsted-Lowry • Accepts H+ ion

  7. In our fizzy bubbly prac: Vinegar + Baking Soda > Carbonic Acid Carbonic Acid > Water + Carbon Dioxide Vinegar: CH3COOH -> CH3COO- + H+Baking Soda: NaHCO3 -> Na+ + HCO3- H++ HCO3- -> H2CO3 Carbonic Acid H2CO3 -> H2O + CO2

More Related