某化学兴趣小组在实验室用硫酸铜溶液和氯化钡溶液反应制取少量氯

某化学兴趣小组在实验室用硫酸铜溶液和氯化钡溶液反应制取少量氯化铜溶液。他们的实验过程和相关数据如下(BaSO4不溶于水)。

第一步:称得烧杯的质量是100g

第二步:反应前称得烧杯、氯化钡溶液及硫酸铜溶液的总质量是346.6g

第三步:两者恰好完全反应后,过滤,称得烧杯及滤液的总质量是300g

请计算:(1)反应后生成沉淀的质量是________g

2)所得氯化铜溶液中溶质的质量分数(写出计算过程,精确到0.1%)。

答案

【答案】(146.6 213.5%

 

相关题目

某服装厂接到一份加工3000件服装的订单.应客户要求,需提前
某服装厂接到一份加工3000件服装的订单.应客户要求,需提前供货,该服装厂决定提高加工速度,实际每天加工的件数是原计划的1.5倍,结果提前10天完
2012年我国城镇需就业的劳动力达2500万人,就业形势严峻。就
2012年我国城镇需就业的劳动力达2500万人,就业形势严峻。就业结构性矛盾更加突出,就业难和招工难并存的现象更加趋于常态化,而且有从沿海向内地
下列说法中错误的是: A.在乘车从机场到都江堰的路上,温
下列说法中错误的是: A.在乘车从机场到都江堰的路上,温总理一直系着安全带是为了防止质性可能带来的危害; B.车上的人能利用时速表和里程表计
 Despite all the benefits of building the subway in the city center, only a fe
 Despite all the benefits of building the subway in the city center, only a few people argued ______ the project.      A. in terms of                 B. in place of      
At the end of the meeting, it was announced that an agreement ______.   A. has
At the end of the meeting, it was announced that an agreement ______.   A. has been reached              B. had been reached       C. has reached               D. had
 When it comes to the world of computers, green computing is becoming popular.
 When it comes to the world of computers, green computing is becoming popular. But what is green computing?    The term “green computing” is one that is being used in many different markets a
豌豆子粒黄色(Y)、圆粒(R)均为显性,两亲本豌豆杂交的F1表型
豌豆子粒黄色(Y)、圆粒(R)均为显性,两亲本豌豆杂交的F1表型如下图。让F1中黄色圆粒豌豆与绿色皱粒豌豆杂交,F2的性状分离比为               
It would not be easy to            ten miles on that amount of petrol
It would not be easy to            ten miles on that amount of petrol.     A.remain       B.cover        C.return       D.move  

最新题目