calculate the volume of a 0.02M mno4- solution that is required to react completely with 10.0ml of 0.1M c2o4-2

Answer 1

Write the equation and balance it.
mols C2O4^2- = M x L = ?
Using the coefficients in the balanced equation, convert mols oxalate to mols permanganate. Then
M MnO4^- = mols/L. You know M and mols, solve for L.

Answer 2

molarity times liters? but where would i get liters from?

Answer 3

Read the problem.
mols oxalate = M x L
M = 0.1M
volume = 10.0mL = 0.010 L big as life right there in the problem.