posted by Monica .
A 25.00 mL sample of KNO3 solution was diluted to 1.00X103 mL. The concentration of the final solution is 0.00383 M. Calculate the concentration of the original solution?
A solution 0.00383 M has 0.00383 moles/L solution. What if you had 0.00383 moles/0.025 L (which is what you had before dilution) = ??