Chemistry Unit 1 Math Skills

Front

What is the base unit to measure concentration?

Back

ppm (parts per million) is the base unit used to measure concentration in chemistry.

Front

If the mass of a sample of gold is 50. g, what is its volume?

Back

The volume of the gold sample is 2.6 mL.

Front

How do you calculate percent error?

Back

Percent error = |(Experimental Value - Theoretical Value)| / Theoretical Value x 100%.

Front

What is the correct reading of the water level in a graduated cylinder?

Back

The correct reading is 38.0 mL.

Front

Convert 3.4 x 10^-3 micrometers to picometers.

Back

3.4 x 10^3 pm.

Front

What is density?

Back

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

Front

What is the formula for calculating volume?

Back

Volume = Mass / Density.

Front

What is the significance of significant figures in measurements?

Back

Significant figures indicate the precision of a measurement and help convey the uncertainty in the data.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.

Front

What is the metric unit for mass?

Back

The metric unit for mass is the gram (g).