chemistry

Exercise 1 Unit Conversion

EXERCISE 1: UNIT CONVERSION

Use Figure 10 to convert each value into the designated units. Submit this exercise to your professor when completed.

1. 46.0 g = _______ kg

2. 57 seconds = ________ minutes

3. 13.5 cm = ________ inches

4. 47 °F = _______ °C

Figure 10: Conversions for temperature, time, mass and length.

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Exercise 1Mapping Laboratory Safety

Use the space provided to draw a map identifying your safety elements and where you will complete your lab experiments. If you do not possess a safety item indicate where the closest one that you can use is located. Use the list below to identify items on your map.

a. Clean, dry, uncluttered laboratory workspace

b. Window for ventilation

c. Trash can

d. Sink (eye wash station)

e. First aid kit

f. Fire extinguisher

a. Phone

b. Storage location for your eScience Lab materials when not in use

c. Computer

d. Blanket that can be used to smother a fire (fire blanket)

e. Shower that can be used to wash off spilled chemicals (safety shower)

f. Exit door (Diagram on your map the route you will use to leave the building in case of an emergency)

g. Smoke detector

h. Dust pan and broom

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Exercise 1Mapping Laboratory Safety

© 2018, eScience Labs

Exercise 1 Neutralization

Exercise Inventory

Materials Digital Exercise (link button below)

*Internet Access

Note: You must provide the materials listed in *red.

EXERCISE 1: NEUTRALIZATION

In this simulated laboratory exercise, you will learn how to properly neutralize and dispose of an acidic solution. Strong acids can damage plumbing and the environment, so they must be netraulized before they can be rinsed of down the drain. This procedure will be part of any laboratory clean-up involving left-over acid that needs to be discarded.

PROCEDURE

1. Click on the link to the Neutralization Digital Exercise (in the Materials box above).

2. Follow the instructions and prompts on the screen to start the exercise.

3. Fill in the information in Tables 1 and 2 on the Exercise 3 Data Sheet while you walk through the digital exercise.

4. After you complete the exercise, answer the Post-Lab questions.

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Data Sheet Exercise 3 Data Sheet

Table 1. Initial pH Test Results

Container Chemical Contents pH Additional Observations

A

B

C

Table 2. Neutralization of Acid

Total Amount of NaHCO3 Added (g) pH

0.5 (initial solution)

1.0

1.5

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