Wet lab 1

Question 1

Molar weight

Answer 1

one mole of a chemical compound is numerically equal in grams to the relative molar mass of that compound

Question 2

Molar concentration

Answer 2

The ratio of the number moles of solute to the number of litres of solvent used to make up the solutions

M = moles of solute (mol) / litres of solution (L or dm3)

Concentration = grams of solute (g) / litres of solution (L or dm3)

Concentrations can be expressed can be expressed as % with weight and volume: w/v, w/w, v/v