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We have to determine the volume of 0.155 M KCl solution (in mL) that contains 2.55 g KCl
Molarity is a unit to express solution concentration. It is defined as the number of moles of solute present in 1 L of solution.
To find out how many mL of 0.155 M KCl solution contain 2.55 g KCl, we will need the molar mass of KCl first.
How many mL of a 0.155 M KCl solution contain 2.55 g KCl?