1 / 7

T h e p H S c a l e

T h e p H S c a l e. What is the pH scale?. pH is another way of representing the hydrogen ion (H + ) concentration of a solution pH values range from 0 - 14. The pH scale. Acidic solution: pH < 7.0 Neutral solution: pH = 7.0 Basic solution: pH > 7.0. Neutral. ACIDIC. BASIC. pH =.

Download Presentation

T h e p H S c a l e

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. ThepHScale

  2. What is the pH scale? • pH is another way of representing the hydrogen ion (H+) concentration of a solution • pH values range from 0 - 14

  3. The pH scale Acidic solution: pH < 7.0 Neutral solution: pH = 7.0 Basic solution: pH > 7.0 Neutral ACIDIC BASIC pH = Increasing acidity Increasing basicity

  4. The pH Scale

  5. Let’s test some Household products!!! • pH paper (aka Universal Indicator Paper) • What color(s) do/does the paper turn for acids? • What color(s) do/does the paper turn for bases? Reds and oranges GreensandBlues

  6. Indicators Indicator: a chemical or solution that changes color at a certain pH The pH range varies for different indicators Titration Xample

  7. Indicator Lab • Many naturally colored compounds can behave as acid-base indicators. In this lab, you will be given a choice of several different fruits and vegetables. Your goal is to make indicator solutions from these fruits and vegetables. Do the following: • Provide a complete set of instructions for making the indicator solution from the raw materials. • Demonstrate that your indicator solution works for distinguishing between acids and bases. • Create a data table listing your results for 3-5 indicator solutions. Your table should include (at a minimum) the indicator name, colors observed, and appropriate pH ranges. • Use the rubric as a guide! • Available Materials: hydrochloric acid, sodium hydroxide, pH paper, tomatoes, limes, red cabbage, red grapes, apples, radishes, and red onions.

More Related