Molecular models of neutral molecules

Chemistry Lab

Lab 1 Introduction and Laboratory Safety CHEM101L

Student Name: Click here to enter text.

Access Code (located on the lid of your lab kit):

1. What would you do if you spilled a tiny amount of hydrochloric acid on your hand?

2. Describe a possible danger than can occur if you put food, soda, coffee, pencil erasers, etc. in your mouth in while conducting your chemistry experiments?

3. What information is given on a Material Safety Data Sheet?

4. List optimum clothing, shoes, jewelry and hair arrangement for your chemistry labs.

5. What is the date that your fire extinguisher was last examined?

6. How old are the batteries in your smoke detector?

7. List the contents from a first aid kit that you could use to treat a minor cut.

8. List the contents from a first aid kit that you could use to treat a minor burn.

Experiment 1: Neutralization of Acids and Bases

Table 1: Initial Litmus Test Results

Container

Chemical Contents

Litmus Results

Additional Observations

A

B

C

Table 2: Neutralization

Amount of Acid (mL)

Litmus Results

1

2

3

4

5

Post-Lab Questions:

1. Most of the chemicals included in your Introductory Chemistry Lab kit can be discarded down a drain with copious amounts of water. Describe a situation in which you would need to neutralize (pH 7) a chemical before discarding down a drain.

2. Why should one add acid to water rather than add water to acid when preparing solutions?

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

4. Address the following scenarios: if a stronger solution of sodium bicarbonate was used in beaker B, would it require more or less acetic acid to neutralize and why? If a weaker solution of sodium bicarbonate was used in beaker B, would that solution require more or less acetic acid to neutralize it and why? Stronger Solution: Weaker Solution:

5. Insert a photo of your completed experiment with your name and access code handwritten in the background.