Presentation on theme: "Acids and Acid Rain Get out Study Guide 2 page 3."— Presentation transcript:
Acids and Acid Rain Get out Study Guide 2 page 3
Dissociate = Separate into its ions H 2 O = H + and OH - H + = hydronium ion OH - = hydroxide ion
What are they? ACID Donates H+ ions into solution pH 1-6 HNO 3 = H+ + NO -3 The more H+ ions put into solution, the stronger the acid BASE Donates OH- ions into solution pH 8-14 NaOH = Na + + OH - The more OH- ions put into solution, the stronger the base
STRONG ACID WEAK ACID NEUTRAL WEAK BASE STRONG BASE
Animations Move the pH scale arrow pH AnimationpH Animation How the pH scale was born: Acids & Bases: Acids, Bases, & Water - The pH ScaleAcids & Bases: Acids, Bases, & Water - The pH Scale
pH Scale Matching Quia - The pH Scale Write the order you think these are from pH 1-14.
1 Stomach Fluids 7 Pure Water 11 Rolaids, Tums 13 Bleach 2 Lemon Juice 5 Coffee 3 Vinegar 8 Blood 10 Borax 14 Lye 4 Tomatoes 6 Milk 9 Baking Soda 12 Household Ammonia
ACID RAIN MOVIE Acid Rain - Our Changing Planet – UMAC When precipitation goes below pH 5.6. Comes from burning of fossil fuels (cars, factories, airplanes). Sulfur and nitric oxides form sulfuric acid and nitric acid.
Main Pollutant of Acid Rain
Forest Destroyed by Acid Rain
Criteria Air Pollutants: NO x and SO x 200+ now-fishless lakes in Adirondacks Little Echo Pond, Franklin, NY pH = 4.2 Thousands of lakes in Canada (Ontario, Quebec, New Brunswick) now- fishless
Not just in US. China Guangzhou Shajiao on the Pearl River India Korba England
Effects on Wildlife Generally, the young of most species are more sensitive to environmental conditions than adults. At pH 5, most fish eggs cannot hatch. At lower pH levels, some adult fish die. Some acid lakes have no fish.
Young fish Wuhan dead fish (China)
Acid Rain Stream
Norilsk, in Russia's remote Artic region, is accused of being world's largest producer of acid rain.
Test your Duckweed Water pH We will use pH paper to test the water of the duckweed cups. Use the guide on the side of the vial to see the pH.