Question

Someone please check my work I'm not sure what to go by.

Answer 1

Question: What is the concentration (in ppm) of Mn7+ in a 0.00300 M KMnO4 solution? Note: for dilute aqueous solutions, 1 ppm = 1 mg/L.

Answer 2

My work:
\[\frac{ .00300moles }{ L }*\frac{ 1moleMn }{ 1mole KMnO4 }= \frac{ .00300molesMn }{ L }\]
\[\frac{ .00300moles }{ L }*10^{6} \] or \[\frac{.0030moles }{ L }*\frac{ 54.938g }{ 1mole }*\frac{ 1000mg }{ 1g }=164.814ppm?\]