2023届河北省衡水市名校化学九年级上册期末质量检测模拟试题含解析

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2022-2023
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ḄäåX஺2FeSO•2Fe(0H),•FeO:2Fe(0H),:2HO4232644366.44gX644_6.44g-36X=0.36gmi=6.44g-0.36g=6.08g(4)2FeSO•2Fe(OH)•FezChïFe2<)3Ḅäå6.44gxAxl(X)%=1.60g,ïFeSChḄäå426443046.44gx——xl00%=3.04g,ᙠFÈFeSChîᐰᑖM,644ÂᑖMᡂᓄXḄäåY஺450CTT2FeSO=^=Fe,O+SO,t+SO,T4500࠷233233041603.04gY304_3.04gT60Y=1.60gᑣßOᱥäFeOḄäå1.60g+1.60g=3.20g23(5)FÈᡠòᒕôᓄ~X:ᓄXõᓄ~X:ᓄX◞÷ᙠ¹øùᘤV»ᑮ1400C,ûV»¢P@NOüNOÊýäå41òᑮdþḄᓄᔠᱥ஺Fe(OH”ᑖMᡂḄᓄ~XḄäå

136.44g-1.6g-3.04-0.36=1.44g,ᒕ!"#ᓄøùäᓄùùᐗûḄ6.44gxý3x100%=3.36g,644ᓄøùᐗûḄL44gx||xl00%=0.32g,ᓄᐗḄ3.2gx◤xl(X)%=0.96g»56x3.36g!"#ᡂḄᓄᔠᱥḄᓄ'(FeQv,ᑣ./ᐗ0ᐗḄ12ᑡ415(6216y0.96g+0.32gx3:;<=12ᡠ>!"#ᡂḄᓄᔠᱥḄᓄ'(Fes஺"BஹDE⚪(Gᜧ⚪ᐳ2J⚪2ᐳ13ᑖ)15ஹM᪵OP⏚RḄX஺CaCL+Na2cO3===CaCO31+2NaCl106100x5.0gcnX=5.3ginnA-᪵OP⏚RḄᑖᦪ\xlOO%=70.7%
:M᪵OP⏚RḄᑖᦪ70.7%஺ூ:᪆௃a⚪ᑖ᪆6:6M᪵OP⏚RḄxCaCl+Na2c஺3=CaCOb+2NaCl23106100x5.0gᑡ15(;61066X=100:5.0dx=5.3g᪵OP⏚RḄᑖᦪ=5.3d/7.5dxl()()%=70.7%ὃg6ᓄ'hi16ஹ(1)Na\H+ஹSO?'(2)0.8(3)pH2sChḄrᑖᦪs9.8%b(4)ាuvᐰ!xᡠ;ryḄrᑖᦪs5.5%»ூz:௃(1)ᵫ|}~2ᙠagxryḄpHJ7,ᐭḄNaOHvᐰ!2ᨵᒕḄ⏚2ᡠ>2ryᨵḄ6Na\H\SO?;(2)ᵫ|}~2ᙠryḄpH7,ὑḄNaOHryḄ16g,rḄ616gx5%=0.8gb(3)10gp⏚᪵OᨵH2sO4Ḅx,#ᡂḄ⏚RḄy

142NaOH+HSONaSO+2HO2424280981420.8gXy8098142:;:x=0.98gy=1.42g08gxy0.98gpH2SO4Ḅrᑖᦪ6wX1OO%=9.8%4ាuvᐰ!xᡠ;ryḄrᑖᦪ61.42Ooஹ1஺஺55%஺