The stoichiometric amounts of zinc nitrate
[Zn(NO3)2 3 6H2O] and ferric nitrate [Fe(NO3)3 3 9H2O] were dissolved
in a volume of mixture solution (50 mL) containing citric acid and
ethylene glycol (1:4, molar ratio).请问这句话中stoichiometric amounts 是什么意思啊？我要称量多少啊？望高人指点~
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