为使锅垢中难溶于酸的CaSO4转化为易溶于酸的CaCO3,常用Na2CO3处理,反应式为CaSO4+CO32-[img=20x11]17d60925c9d563a.png[/img]CaCO3+SO42-,此反应的标准平衡常数为()。
未知类型:{'options': ['K[img=10x16]17d609261d2ba94.png[/img](CaSO4)·K[img=10x16]17d609261d2ba94.png[/img](CaCO3)', 'K[img=10x16]17d609261d2ba94.png[/img](CaCO3)/K[img=10x16]17d609261d2ba94.png[/img](CaSO4)', '[K[img=10x16]17d609261d2ba94.png[/img](CaSO4)·K[img=10x16]17d609261d2ba94.png[/img](CaCO3)]1/2', 'K[img=10x16]17d609261d2ba94.png[/img](CaSO4)/K[img=10x16]17d609261d2ba94.png[/img](CaCO3)'], 'type': 102}
未知类型:{'options': ['K[img=10x16]17d609261d2ba94.png[/img](CaSO4)·K[img=10x16]17d609261d2ba94.png[/img](CaCO3)', 'K[img=10x16]17d609261d2ba94.png[/img](CaCO3)/K[img=10x16]17d609261d2ba94.png[/img](CaSO4)', '[K[img=10x16]17d609261d2ba94.png[/img](CaSO4)·K[img=10x16]17d609261d2ba94.png[/img](CaCO3)]1/2', 'K[img=10x16]17d609261d2ba94.png[/img](CaSO4)/K[img=10x16]17d609261d2ba94.png[/img](CaCO3)'], 'type': 102}
举一反三
- 为使锅垢中难溶于酸的CaSO4转化为易溶于酸的CaCO3,常用Na2CO3处理,反应式为CaSO4+CO32-═CaCO3+SO42-,此反应的标准平衡常数为()。 A: K(CaCO)/K(CaSO) B: K(CaSO)/K(CaCO) C: K(CaSO)·K(CaCO) D: [K(CaSO)·K(CaCO)]
- 为使锅垢中难溶于酸的CaSO4转化为易溶于酸的CaCO3,常用Na2CO3处理,反应式为CaSO4+CO32- [img=34x13]1803d4c04bfcb2a.png[/img]CaCO3+SO42-,此反应的标准平衡常数为 A: Kθsp(CaCO3 ) / Kθsp(CaSO4 ) B: Kθsp(CaSO4 ) / Kθsp(CaCO3 ) C: Kθsp(CaSO4 )·Kθsp(CaCO3 ) D: [ Kθsp(CaSO4 )·Kθsp(CaCO3 ) ]1/2
- 为使锅垢中难溶于酸的CaSO4转化为易溶于酸的CaCO3,常用Na2CO3处理,反应式为CaSO4+CO32-═CaCO3+SO42-,此反应的标准平衡常数为()。 A: Kθsp(CaCO3)/Kθsp(CaSO4) B: Kθsp(CaSO4)/Kθsp(CaCO3) C: Kθsp(CaSO4)·Kθsp(CaCO3) D: [Kθsp(CaSO4)·Kθsp(CaCO3)]1/2
- 为使锅垢中难溶于酸的CaSO4转化为易溶于酸的CaCO3,常用Na2CO3处理,反应式为CaSO4+CO32-<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/201911/88320eab77594b6abf0039ab0efe3c57.png" />CaCO3+SO42-,此反应的标准平衡常数为()。 A: K<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/201911/e8c371ce6b96487e829331bb8dee134f.png" />(CaSO4)·K<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/201911/e8c371ce6b96487e829331bb8dee134f.png" />(CaCO3) B: K<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/201911/e8c371ce6b96487e829331bb8dee134f.png" />(CaCO3)/K<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/201911/e8c371ce6b96487e829331bb8dee134f.png" />(CaSO4) C: [K<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/201911/e8c371ce6b96487e829331bb8dee134f.png" />(CaSO4)·K<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/201911/e8c371ce6b96487e829331bb8dee134f.png" />(CaCO3)]1/2 D: K<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/201911/e8c371ce6b96487e829331bb8dee134f.png" />(CaSO4)/K<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/201911/e8c371ce6b96487e829331bb8dee134f.png" />(CaCO3)
- 求不定积分[img=132x48]17da6537fc8dad6.png[/img]; ( ) A: -(4*(cos(x/2)/2 + 2*sin(x/2)))/(17*exp(2*x)) B: (4*(sin(x/2)/2 + 2*sin(x/2)))/(17*exp(2*x)) C: (4*(cos(x/2)/2 + 2*sin(x/2)))/(17*exp(2*x)) D: (4*(cos(x/2)/2 + 2*cos(x/2)))/(17*exp(2*x))