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A solution of 5 x 10-3 M MnO4- is dissolved in 25.00 mL of H2O. What...

A solution of 5 x 10-3 M MnO4- is dissolved in 25.00 mL of H2O. What volume of H2O must be added to the solution to reduce the concentration of [MnO4- ] to 7.5 x 10-4 M?

If possible, please show work so I can learn and understand how you approached the problem and solved it. Thanks!

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