In dilutions the amount of solute is held constant, but the volume is changed. Since (concentration)(volume) is equal to the amount of solute, we can derive an expression: M1V1=M2V2 where M represents molarity in mol/L and V is volume of the solution in Liters. THIS ONLY WORKS FOR DILUTIONS. Show you work and use the Molarity Simulation to check your answers. If 0.20 L of 2.5 M K2CrO4 is diluted to 0.769L what is the new concentration?

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