Neutralization Reactions
In a clean, small container (glass vial or small paper cup),place about ten drops of an ammonia cleaner and two “squirts” ofcabbage juice indicator.
Use a clean medicine dropper and count the number of drops ofvinegar required to change the color of the solution from green topurple.
Repeat the above tasks with pickle juice or some solution thatyou found to have an acid pH slightly higher than vinegar.
Create a data table that summarizes your results of the twotitrations.
Neutralization Reactions – comparison of two acidsolutions neutralizing a base cabbage juice + ammoniasolution
Insert Table Here
Drops of Ammonia | Vinegar | Pickle juice |
10 | 6 | 8 |
10 | 7 | 7 |
10 | 6 | 8 |
In the titration of ammonia solution with vinegar, and withanother acid solution with a slightly higher pH value, how did theamounts needed for the neutralization of the ammonia (signaled bythe change from green to purple in the solution containing theammonia and cabbage juice) compare? How does this comparison matchthe differences in pH values? What is the basis of any correlationbetween starting pH values of the two acids and amount required toneutralize the same amount of vinegar solution? Provideexplanations for each for the three questions.
