mols KMnO4 = grams/molar mass = approx 0.033 but you need to this and all of the calculations that follow more accurately.
mols ethanol = approx 0.05
Convert mols KMnO4 to mols H2SO4. That's 0.033 x 6/4 = 0.05
Convert mols ethanol to mols H2SO4. That's 0.05 x 6/5 = 0.06
The limiting reagent is KMnO4 and you will use approx 0.05 mols H2SO4
Then convert mols H2SO4 to grams. g = mols x molar mass.
Check my work.
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