Maths Equations

Question 1

Ideal gas equation

Answer 1

PV = nRT
P - Pressure (Pa / Nm-2)
V - volume (m3)
n - moles
R - gas constant (given)
T - temperature (k)

Question 2

Conversions for cm3 and dm3

Answer 2

cm 3 -> m3 /1,000,000
dm3 -> m3 /1,000

Question 3

Molar volume equation

Answer 3

Volume = Moles x molar volume (given)

Question 4

Moles equation

Answer 4

Moles = mass/Mr

Question 5

Concentration equation

Answer 5

Concentration = moles/volume

Question 6

Percentage error equation when in uncertainty calculations

Answer 6

(uncertainty/reading) x 100
AS can take the largest error and use that one

Question 7

Number of particles

Answer 7

Moles x avogadro’s number

Question 8

Speed of light equation

Answer 8

Frequency X wavelength = c

Question 9

Frequency equation

Answer 9

f = c / wavelength

Question 10

Energy and frequency equation

Answer 10

E = hf

Question 11

Energy and wavelength equation

Answer 11

E = 1 / wavelength