1 / 12

Acid Properties

Press the Right Arrow Button to Advance through the Presentation!. SPI 0807.9.12 Acids and Bases. . Notes. Acid Properties An acid is any compound that increases the number of hydronium ions when dissolved in water.

orrick
Télécharger la présentation

Acid Properties

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. Press the Right Arrow Button to Advance through the Presentation! SPI 0807.9.12 Acids and Bases  Notes • Acid Properties • An acid is any compound that increases the number of hydronium ions when dissolved in water. • Acids have a sour flavor The sour taste of lemons, limes, and other citrus fruits is a result of citric acid. • Acids neutralize bases and bases neutralize acids

  2. SPI 0807.9.12 Acids and Bases  Notes • Acid Properties • Acids change colors in indicators like litmus paper or phenolphthalein or bromthymol blue or cabbage juice • Litmus paper- is a common acid/base indicator and • blue litmus paper turns red in acids Acids

  3. SPI 0807.9.12 Acids and Bases Review Questions Number your paper from 1 to 12. Then fill in the blanks using the following words… red, hydronium, acids, compound, sour, (1) An acid is any __________that increases the number of _____________ions. (2) Acids have a ______ flavor. (3) _________ neutralize bases. (4) Blue litmus paper turns ______ in acids. compound hydronium sour Acids red

  4. SPI 0807.9.12 Acids and Bases Notes • Acid Properties Continued • Acids react with some metals • Acids react with some metals to produce hydrogen gas. • Acids conduct electric current • When acids are dissolved in water, they break apart and form ions. These ions make it possible for the solution to conduct an electric current. • Example: batteries Example: hydrochloric acid with zinc metal

  5. Review Questions  SPI 0807.9.12 Acids and Bases Fill in the blanks using the following words… ions, electricity, metals (5) Acids react with some ________. (6) Dissolved acids in water break apart and form _____. (7) Acids conduct _________. metals ions electricity BONUS QUESTION h How is an ion different from an atom? Ions have either a positive or negative charge. Atoms have no charge. Otherwise they are identical.

  6. Acid Properties (continued)  Notes • A substance that changes color in the presence of an acid or base is an indicator. • This flask contains water and an indicator called bromthymol blue. • When acid is added, the color • changes to yellow.

  7. The pH scale  SPI 0807.9.12 Acids and Bases Notes Acids are 0 to 6.9 • pH scale: a way to determine the level of acidity or basicity of a substance. (tells you how strong or weak acids and bases are) • Acids are 0 to 6.9 • 7 is neutral (pure water is 7)

  8. More About the pH scale  SPI 0807.9.12 Acids and Bases Notes pH 1 is stronger than pH 5 • Again…acids are 0 to 6.9 • The lower the number…the stronger the acid • In other words, an acid with a pH of 1 is stronger than an acid with a pH of 5

  9. More About the pH scale  Notes Vertical (top to bottom) Vertical (bottom to top) Horizontal (left to right) Horizontal (right to left) pH Scale pH Scale pH Scale • The pH scale can be displayed different ways. • Yet the ranges for acids and basesstays the same (0 to 6.9 for acids, 7.1 to 14 for bases)

  10. Review Questions  SPI 0807.9.12 Acids and Bases Fill in the blanks using the following words… 0 to 6.9, True, seven, vinegar, pH scale (8) A __________ tells you how strong or weak an acid or base is. (9) On a pH scale, the range for acids is _______. (10) A neutral substance like pure water would have a pH of _______? (11) (True or False): An acid with a pH of 2 is stronger than an acid with a pH of 4. ___________. (12) Which substance has greater acidity, pure water or vinegar? __________. pH scale 0 to 6.9 seven True vinegar

  11. SPI 0807.9.12 Acids and Bases Notes How are acids used? • Sulfuric acid is (most common) used to make paper, paint, detergents, fertilizers and many other products. • Nitric acid is used to make fertilizers, rubber, and plastics. • Hydrochloric acid is used to separate metal from their ores. It is also used in swimming pools and in your stomach. • Citric acid and ascorbic acid (Vitamin C) are found in orange juice and grapefruit juice. • Carbonic acid and phosphoric acid are in soft drinks.

  12. SPI 0807.9.12 Acids and Bases Video Links Link 01:Universal Indicator Link 02:Coke can in acid Link 03:Cheeseburger in Hydrochloric Acid

More Related