向盛有100g稀硫酸的烧杯中加入一定量的镁粉,固体完全溶解后,再

向盛有100g稀硫酸的烧杯中加入一定量的镁粉,固体完全溶解后,再向所得溶液中加入NaOH

溶液,所得沉淀质量与加入NaOH溶液的质量关系如图所示

1)计算氢氧化钠溶液的溶质质量分数;

(要求写出计算过程)

   2)与氢氧化钠溶液反应所消耗硫酸溶质的质量为    克。

答案

30%

29.4g

相关题目

                      ,背灼炎天光。        
                      ,背灼炎天光。         ( 白居易      《观刈麦》 )
课文名句默写 (1)________________,鸟倦飞而知还。______________
课文名句默写 (1)________________,鸟倦飞而知还。________________,抚孤松而盘桓。(陶渊明《归去来兮辞》) (2)外无期功强近之亲________________,_______
若某原子的摩尔质量是M g /mol,则一个该原子的真实质量是 
若某原子的摩尔质量是M g /mol,则一个该原子的真实质量是     g。 
These blood debts will have ________in blood. A. been paid          
These blood debts will have ________in blood. A. been paid                  B. to pay                        C. paid                    
Further information about the position can be o ______ from our head office.  
Further information about the position can be o ______ from our head office.  
我国领土大部分位于地球上五带中的(      ) A、热带  
我国领土大部分位于地球上五带中的(      ) A、热带    B、北温带      C、南温带      D、北寒带
Many Chinese students who have learnt English for more than ten years are still
Many Chinese students who have learnt English for more than ten years are still unable to speak English very well when they meet a foreigner. They seem to have mastered the basic language structure(
已知定义在R上的函数f(x),满足f(x)=f(x+4),f(2+x)=f
已知定义在R上的函数f(x),满足f(x)=f(x+4),f(2+x)=f(2﹣x),若0<x<2时,f(x)=2﹣x,则f(2015)=

最新题目