What is the molarity of a solution made by mixing 2.80 g of koh with enough water make 750 ml of solution?

Molarity is expressed as the number of moles of solute per volume of the solution. We calculate as follows:

2.80 g (1 mol / 56.11 g) = 0.05 mol KOH

Molarity = 0.05 mol KOH / 750 mL (1 L / 1000 mL)

Molarity = 0.07 M

Hope this answers the question. Have a nice day.