moles

Question 1

how to calculate concentration in g/dm3?

Answer 1

mass of solute in g/volume of solvent in dm3

Question 1

how to calculate concentration in mol/dm3?

Answer 1

number of moles of solute/volume of solvent in dm3

Question 2

concentration in g/dm3 can be converted into concentration in mol/dm3 and vice versa.

Answer 2

g/dm3 = concentration in mol/dm3 x molar mass

mol/dm3 = concentration in g/dm3 divided by molar mass

Question 3

when can u apply the formula of 6.02 x 10^23 for?

Answer 3

when it comes to ions, electrons, atoms & molecules

Question 4

how do you find the number of moles based on molar volume (24dm3)

Answer 4

no. of moles = volume of gas in dm3 divided by 24dm3

Question 5

how is the mass of gas related to its volume

Answer 5

mass/molar mass = volume/molar volume

Question 6

what is the formula for percentage yield?

Answer 6

percentage yield = actual yield/theoretical yield x 100%