3.3 - Moles and volumes

Question 1

Convert cubic centimetres into millilitres

Answer 1

1 cm³ = 1 ml

Question 2

Convert cubic decimetres into litres

Answer 2

1 dm³ = 1000 cm³ = 1000 ml = 1 L

Question 3

What is the equation that links amount of substance, volume, and concentration?

Answer 3

moles (n) = concentration (mol dm⁻³) x volume (dm³)

Question 4

What is the equation that links amount of substance, volume, and concentration if the volume is in cm³?

Answer 4

moles = concentration x (volume/1000)

Question 5

Define the term standard solution

Answer 5

A solution of known concentration

Question 6

Define the term molar gas volume

Answer 6

The volume per mole of gas molecules at a stated temperature and pressure

Question 7

What is the equation that links amount of substance, volume, and concentration if the moles is for gases?

Answer 7

moles = volume (dm³) / 24.0
OR
moles = volume(cm³) / 24 000

Question 8

What is the ideal gas equation?

Answer 8

pV = nRT

pressure
volumes
moles
ideal gas constant - 8.31
temperature - K

Question 9

How do you convert cm³ to m³?

Answer 9

x 10⁻⁶

Question 10

How do you convert dm³ to m³ ?

Answer 10

x 10⁻³

Question 11

How do you convert °C to K?

Answer 11

+ 273

Question 12

How do you convert kPa to Pa?

Answer 12

x 10³