Acids, bases and the ph scale
Click Image for Gallery
In this lab, you will gain an understanding of the basic differences between the properties of acids and bases. Know the role of hydrogen and hydroxide ions in acids and bases. Comprehend the nature of the pH scale with regards to acid and base strength. Students will examine the effects of acids and bases on several chemical pH indicators, determine the pH of several common household materials, and use the knowledge gained to determine the composition of four unknown clear solutions. There are enough materials for 15 groups. Teacher’s manual and student copy masters are included.