Chem Sem1 Final 1-3, 2024

Front

Convert 7,000 g to kg:

Back

7 kg

Front

Convert 5 cm to mm:

Back

50 mm

Front

What should you do with long hair in the laboratory?

Back

Tied back or kept entirely out of the way with a hair band, hairpins, or other confining device.

Front

How do you calculate % error?

Back

% Error = |(Experimental Value - Theoretical Value) / Theoretical Value| x 100

Front

What is the % error if the measured density of copper is 8.44 g/mL and the theoretical density is 8.94 g/mL?

Back

4.47% error

Front

Is it true that you should never remove chemicals or other equipment from the laboratory?

Back

True

Front

What is the definition of density?

Back

Density is the mass of an object divided by its volume (Density = Mass/Volume).

Front

What is the SI unit for mass?

Back

Kilogram (kg)

Front

What is the SI unit for length?

Back

Meter (m)

Front

What is the importance of safety goggles in the laboratory?

Back

Safety goggles protect your eyes from harmful chemicals and debris.