The formula for molarity is M=moles solute divided by liters solution. The moles of solute are given in the question so one only needs to convert the milliliters into liters and then plug them into the equation. Since 1 L=1000mL 288.84 mL=.28884 L. Plugging that into the equation gives the following:
Molarity= (.64 moles)/(.28884 L)=2.2 M

Brandon W.
05/13/23
Sydney J.
thank you so much! I understand now!!05/13/23