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来源:学生作业帮助网 编辑:作业帮 时间:2024/07/19 05:48:02
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(1)Fe2O3 NaOH溶液 NaHCO3
(2)2Al(OH)3=灼烧=Al2O3+3H2O
(3)4
(5)Al2O3+2NaOH==2NaAlO2+H2O
m(Al2O3)=408kg n(NaOH)=2n(Al2O3)=408000/102x2=8000mol m(NaOH)=8000x40/1000000=0.32t
多么熟悉的题目呀。固体A应该是SiO2,试剂是NaOH,