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mymodules.dtls.unisa.ac.za
CHE1503-25-Y

CHE1503-25-Y

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If you accidently mix the wrong chemicals, you must:

Add an acid to neutralize it.

Report it to the instructor.

Share your neighbour’s experimental results.

Immediately dispose of the mixture down the sink.

Repeat the experiment one more time.

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On the last day the lab experiment will end at:

When you are done you can leave.

At 5pm, like always.

The last day is a paper not an experiment.

None of the other options are correct.

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In lab, to avoid bumping into other students, you should:

Take one step forward before you back up.

Always move exactly when and where you want.

Look behind you before you back up.

Step backward, only if instructed to do so.

Never step backward.

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Which of the following behaviours demonstrates proper laboratory etiquette?

Snapping photos during the lab.

Using humour to distract colleagues during experiments.

Eating snacks while conducting experiments to stay energized.

Labelling and properly storing all personal belongings in designated areas.

Sharing personal electronic devices with colleagues during work hours.

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You may do an unassigned experiment, only:

If you have designed it carefully yourself.

None of the other options.

If you are sure, it is safe.

If you are finished early in lab.

If you have found it on the internet.

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When in the laboratory, I need to keep my bag:

I am not allowed to bring a bag

On the desk with me but make sure not the get chemicals on it

Outside the lab where there is nobody

Underneath the bench so nobody can trip over the bag

In the corridor between the benched

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Why is it important to review laboratory safety protocols before starting work?

Because I have questions in the pre-lab and lab report about safety so knowing it will help me.

To avoid needing to use safety equipment.

To impress other students.

To understand potential hazards and safety practices.

To finish early.

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If you are pregnant or have a medical condition:

Bring comfortable shoes to wear.

Do not hesitate to work in the lab since it is well sterilized.

Check with your instructor prior to working in lab.

None of the other options.

Wear loose clothes so you can move freely.

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All chemicals are considered dangerous but a

Hazard symbol of this kind indicates that you should store the chemical

separately in case of fire.

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Why is it essential to inform someone of your whereabouts when working in a laboratory?

To avoid keeping secrets.

To avoid unnecessary delays.

To ensure that if something happens, that people know you were in the lab.

To ensure safety and accountability.

To make new friends.

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