Question 25 of 36intermediate💡 UnderstandShort Answer2 marks
How are 0.50 mol Na₂CO₃ and 0.50 M Na₂CO₃ different?
Correct Answer
0.50 mol Na₂CO₃ refers to the amount of substance, meaning there are 0.50 moles of sodium carbonate entities present.
0.50 M Na₂CO₃ refers to the molarity or concentration of a solution, meaning 0.50 moles of sodium carbonate are dissolved in 1 litre of the solution.
Exercise: EXERCISES | Q: 1.25 | (Page 27)
For More Understanding
Explanation
The term 'mol' is used to count entities at the microscopic level (atoms, molecules, etc.), representing the absolute amount of substance. The term 'M' stands for molarity, which is a measure of concentration indicating the number of moles of solute present per litre of the solution.