磁铁矿石中含Fe3O4 76%,不含铁杂质24%.矿石中铁的质量分数为?
磁铁矿石中含Fe3O4 76%,不含铁杂质24%.矿石中铁的质量分数为?
化学人气:747 ℃时间:2019-10-17 07:18:23
优质解答
M有质量,其中0.24M为不含铁的质量.0.76M为Fe3O4,分子量56*3+16*4=232.所以铁原子质量为0.76Mx56x3/232=0.5503M.铁的质量分数就为55.03%
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