Question

Experiment 1: Neutralization of Acids and Bases

Data Tables and Post-Lab Assessment

Container	Chemical Contents	Litmus Results	Additional Observations
A
B
C

Table 2: Initial Litmus Test Results

Table 3: Neutralization

Amount of Acid	Litmus Result
1 mL
2 mL
3 mL
4 mL
5 mL

Post-Lab Questions

State your hypothesis (developed in Step 8) here. Be sure to include what you think the pH will be, and why.

What is a neutralization reaction?

When might neutralization reactions be used in a laboratory setting?

At what point was the solution in beaker “B” neutralized?

What do you think would have been the results if a stronger solution of sodium bicarbonate was used? Would it take more or less to neutralize? What about a weaker concentration of sodium bicarbonate?   

Answer 1

1. State your hypothesis (developed in Step 8) here. Be sure to include what you think the pH will be, and

I think the pH of weigh boat A will be around 7, because that is the pH of pure water. Its because the pH of beaker B will be more basic, closer to 8, and the pH of weigh boat C will be more acidic, like 5 or lower. This may be due to the fact vinegar is acidic, and we know baking soda is basic.

2.What is a neutralization reaction?

A neutralization reaction is when an acid and a base combine and breakdown to become salt and water, therefore neutralizing the pH to 7.

3. When might neutralization reactions be used in a laboratory setting? When you need to neutralize chemicals before discarding of them.

4.

5.

If a strong solution of sodium bicarbonate was used in beaker b, more acetic acid would have been needed in order to neutralize the solution because it would have been a stronger base and therefore would have required more acid to reach a PH of 7. In contrast, if a weaker solution of sodium bicarbonate was used in beaker b, less acetic acid would have been necessary in order to neutralize the solution because the solution would have been less basic and therefore would require less acid to reach a PH of 7.

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