How do I do this? I think I\'m getting the mole ratiowrong... The composition of

Question

How do I do this? I think I'm getting the mole ratiowrong... The composition of a hydrated potassium-salt of a hafnium(IV) oxalate complex ion conforms to the general formula: A 0.6536-g sample of this compound required 45.56 mL of 0.02954 M KMnO4 solution for the titration of all of the oxalate. Calculate the number of moles of oxalate in this sample. Tries 2/5 Previous Tries Calculate the number of moles of oxalate per gram of the compound. Tries0/5 Calculate the molar mass of the compound. Tries0/5 What is the value of x? Tries 0/5 What is the value of w? Tries 0/5

Explanation / Answer

Okay I got the first two answers, you needed to use the mole ratio from the Oxalic acid + permanganate reaction. But I can't get the 3 questions

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