Advanced Higher Chemistry - Numeracy

Tick all that are equal to 1 ppm.

• 1 part per million

• 1 mg of solute per L of solvent

• 1 mg of substance per kg of solid

• 1 mg of substance per kg of solvent

What is %w/v?

• % mass by volume

• % mass by mass

• % volume by volume

• % volume by mass

What is nano ?

• 10^-9

• 10^-6

• 10⁶

• 10⁹

What is micro?

• 10^-9

• 10^-6

• 10⁶

• 10⁹

What is mega?

• 10^-9

• 10^-6

• 10⁶

• 10⁹

What is giga?

• 10^-9

• 10^-6

• 10⁶

• 10⁹

Round 1.234 to 2 significant figures.

• 1.2

• 1.23

• 1.20

• 1.0

Round 4008 to 4 significant figures.

• 4008

• 4008.0000

• 4008.00

• 4000

Round 0.0357 to 2 significant figures.

• 0.03

• 0.040

• 0.036

• 0.04