Presentation is loading. Please wait.

Presentation is loading. Please wait.

Determine how to Balance pH 1.What pH would I add to neutralize a substance with a starting pH of 4? 2. What about starting pH of 14?

Similar presentations


Presentation on theme: "Determine how to Balance pH 1.What pH would I add to neutralize a substance with a starting pH of 4? 2. What about starting pH of 14?"— Presentation transcript:

1 Determine how to Balance pH 1.What pH would I add to neutralize a substance with a starting pH of 4? 2. What about starting pH of 14?

2 1.Follow directions below to make cabbage juice indicator. 2.Each group member tests the pH of their substance using the cabbage juice indicator in a clear plastic cup. Record your results. Making Cabbage Juice Indicator 1.Rip the cabbage leaf into small pieces and place in plastic bag. 2.Add ¾ cup very warm water and seal the bag closed. 3.Gently squeeze the bag for about 3 min. until the water turns dark blue.

3 Part 2 Seal baggie with cabbage leaves inside & throw away. Test each person’s substance using the LabQuest pH meter. *RINSE THE PROBE OFF AFTER EACH SUBSTANCE!!! Clean up your lab area

4 Fill-in-the-Blank Complete the “Acids & Alkalis in Our Daily Lives” worksheet (On back of BrainPop Activity worksheet) as you fill-in- the-blanks at the following link: Acids and Alkalis in Our Daily Lives When you’re finished try these fill-in-the-blanks online: –Use of IndicatorsUse of Indicators –NeutralisationNeutralisation –AcidsAcids –Strong AcidsStrong Acids –Faces of science:: Do You Know Your Bubbles?Faces of science:: Do You Know Your Bubbles? (After filling in bubbles, click NEXT one time)

5 Finished?? “Digestion & pH” worksheet: Read directions & questions carefully!

6 Where is there more acidic water in the east or the west? _______ Why?______________________________

7 Compare to older map.

8 Compare to an even older map.

9 pH Balancing SO…What do THIS mean?? Adding an equally strong opposite to bring a substance close to neutral.


Download ppt "Determine how to Balance pH 1.What pH would I add to neutralize a substance with a starting pH of 4? 2. What about starting pH of 14?"

Similar presentations


Ads by Google