hiphotos.baidu.com/%D1%A4%C4%BF%B5%C4%C5%DD%C4%AD/pic/item/cd0cd1fb5af9403b4d4aea64.jpg" target="_blank" >http://hiphotos.baidu.com/%D1%A4%C4%BF%B5%C4%C5%DD%C4%AD/pic/item/cd0cd1fb5af9403b4d4aea64.jpg这个,第2个连接~
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/18 19:13:18
![hiphotos.baidu.com/%D1%A4%C4%BF%B5%C4%C5%DD%C4%AD/pic/item/cd0cd1fb5af9403b4d4aea64.jpg](/uploads/image/z/4365069-69-9.jpg?t=hiphotos.baidu.com%2F%25D1%25A4%25C4%25BF%25B5%25C4%25C5%25DD%25C4%25AD%2Fpic%2Fitem%2Fcd0cd1fb5af9403b4d4aea64.jpg%22+target%3D%22_blank%22+%3Ehttp%3A%2F%2Fhiphotos.baidu.com%2F%25D1%25A4%25C4%25BF%25B5%25C4%25C5%25DD%25C4%25AD%2Fpic%2Fitem%2Fcd0cd1fb5af9403b4d4aea64.jpg%E8%BF%99%E4%B8%AA%2C%E7%AC%AC2%E4%B8%AA%E8%BF%9E%E6%8E%A5%7E)
hiphotos.baidu.com/%D1%A4%C4%BF%B5%C4%C5%DD%C4%AD/pic/item/cd0cd1fb5af9403b4d4aea64.jpg" target="_blank" >http://hiphotos.baidu.com/%D1%A4%C4%BF%B5%C4%C5%DD%C4%AD/pic/item/cd0cd1fb5af9403b4d4aea64.jpg这个,第2个连接~
hiphotos.baidu.com/%D1%A4%C4%BF%B5%C4%C5%DD%C4%AD/pic/item/cd0cd1fb5af9403b4d4aea64.jpg" target="_blank" >
http://hiphotos.baidu.com/%D1%A4%C4%BF%B5%C4%C5%DD%C4%AD/pic/item/cd0cd1fb5af9403b4d4aea64.jpg
这个,第2个连接~
hiphotos.baidu.com/%D1%A4%C4%BF%B5%C4%C5%DD%C4%AD/pic/item/cd0cd1fb5af9403b4d4aea64.jpg" target="_blank" >http://hiphotos.baidu.com/%D1%A4%C4%BF%B5%C4%C5%DD%C4%AD/pic/item/cd0cd1fb5af9403b4d4aea64.jpg这个,第2个连接~
1.
n=w/74.5
v=m/p=(v+w)/1000p
c=n/v带入即可
2.
2Na + 2H2O = 2NaOH + H2
46…………36…………80………2
x…………36x/46……80x/46…2x/46
根据质量守恒
x+100=111+2x/46
解得x=11.5
则36x/46=9,80x/46=20
所以反应掉了9克水,生成了20gNaOH,111克溶液中水的质量为111-20=91g
下面的溶解度应该会计算了吧