AP Chemistry Indicators

what is a indicator

• potato

• an acid

• a chemical that measures ph

• a reactive metal

what is the PH of a lemon?

• 4-7ph

• 1-3ph

• 8-11ph

• 12-14ph

What color will it show if acid is placed on blue litmus paper

• It will not change

• It will turn red

• it will turn green

• it will turn purple

What is the PH for alkaline

• 1-4

• 4-7

• 8-14

• 1-14

What is the PH for neutral

• 4

• 7

• 8

• 10

What is the PH of baking soda?

• 1-7

• 8-14

What is the PH of salt

• 3

• 7

• 9

• 12

What happens if you put a very strong acid into universal indicator?

• It will stay the same

• it will turn red

• it will turn purple

• it will turn blue

What is the color of methyl orange when you put alkaline in it?

• It will be orange

• it will be blue

• it will be yellow

• it will be red

Tags

NGSS.MS-PS1-2

What reaction can pheonolphtalein make?

• Become white (colorless)

• Become colorless

• become yellow

• Become pink