May 31, 2012

AGENDA:1 – Bell Ringer & Part.

Log2 – Review HW3 – Demo4 – pH Indicator

Activity

Today’s Goal:Students will be able to analyze pH indicators to determine the acidity or basicity of a solution.

Homework1. pH Indicators2. If absent Fri (5/25),

make up Quiz 18 by TOMORROW!

3. If absent Tue (5/22), make up Acid Base Lab by TOMORROW!

4. ALL work is due TOMORROW!

pH Indicators!

1. What is a pH indicator? A compound that is used to determine

a pH change of a solution.

2. How do indicators work? Indicators change color when the

concentration of H+ or OH- ions changes. The chemical compounds form new compounds with the ions with different colors.