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Which of these mole ratios is possible for this reaction? FeCl3 + 3NaOH → Fe(OH)3 + 3NaCl 1:1 1:3 3:1 2:3

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FeCl3 reacts with NaOH follows the formula: FeCl3 + 3NaOH → Fe(OH)3 + 3NaCl.  In this reaction, the molar ratio of the two reactants is 1:3.  So in order for both reactants to react with each other completely, ratio needs to be 1:3.  Any other ratio is not possible to give a complete reaction, in another word, there would be one or the other reactant left over.
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