Household Acids/bases Lab (Page 2 of 2) in pdf

Household Acids/bases Lab Page 2

2) Of the chemicals tested in the lab, list those that would be considered bases. (1 pt)

3) For phenolphthalein, create a scale using your data from the front which shows the colors it turns into

for different ranges of pH values. Using your scale, would phenolphthalein be better to identify acids or

bases and why? (4 pts)

4) For methyl orange, create a scale using your data from the front which shows the colors it turns into for

different ranges of pH values. Using your scale, would phenolphthalein be better to identify acids or bases

and why? (4 pts)

5) Finally, for the universal indicator, create a scale using your data from the front which shows the colors

it turns into for different ranges of pH values. Using your scale, explain what is interesting about the

“general” order of the colors and how it relates to another common scientific phenomenon. (4 pts)

6) Using your pH value for cola, what is the [H

] and [OH

]? (2 pts, show your work)

7) Using your pH value for drain cleaner, what is the [H

] and [OH

]? (2 pts, show your work)

Household Acids/bases Lab Page 2