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How to find moles given oxidation numbers and chemical formula? Trying to do my chemistry lab but i'm super duper stuck. please help me i'm gonna die. this is the part i'm stuck on: The overall charge on the complex, [Ni(en)(H2O)]^2+ * SO4^2- * H2O is zer...

thanks for answering! when we found the moles of en (ethylenediamine) in a previous step, it wasn't a 1 to 1 mole ratio with Ni, it was .283 moles in 100g of complex. i think we're supposed to use the oxidation numbers along with the moles of nickel to fi...