Question

Which of the following statements are true about molarity and dilution? (Select all that apply.) 

Molarity is one of many ways to measure the concentration of a solution. 

The molarity equation can be algebraically rearranged to give the following relationship: moles (M / Liters). 

The molarity equation can be algebraically rearranged to give the following relationship: Liters (M * moles). 

Molarity is defined as the number of moles of solute per liter of solvent. 

When diluting a solution by adding water the number of moles of solute in the solution does not change.

Answer 1

Molarity is one of many ways to measure the concentration of a solution (true) other ways like molarity, (w/w)%, (v/v)% etc: are also available Molarity = moles/Litre moles = Molarity times Litre but it is given moles = M/Litres (False) Litres = moles/Molarity But it is given as Litres = M * moles (False) Molarity = no.of moles/volume of the solution in litres (true) when diluting we add water to the solution, but the amount of solute remains the same, only the volume changes (True)

Answer 2

The molarity equation can be algebraically rearranged to give the following relationship: moles (M / Liters).