计算题 氯化亚铜(CuCl)是重要的化工原料。国家标准规定合格的CuCl产品的主要质量指标为CuCl的质量分数大于96.5%。工业上常通过下列反应制备CuCl:?
![]()
600)makesmallpic(this,600,1800);\' style=\"WIDTH: 414px; HEIGHT: 21px; VERTICAL-ALIGN: middle\" src=\"http://www_php168_com/91files/2016060705/nnlekrzahz0.png\">
(1)CuCl制备过程中需要配制质量分数为20.0%的![]()
600)makesmallpic(this,600,1800);\' style=\"WIDTH: 45px; HEIGHT: 21px; VERTICAL-ALIGN: middle\" src=\"http://www_php168_com/91files/2016060705/o0uz3cgubud.png\">溶液,试计算配制该溶液所需的![]()
600)makesmallpic(this,600,1800);\' style=\"WIDTH: 92px; HEIGHT: 23px; VERTICAL-ALIGN: middle\" src=\"http://www_php168_com/91files/2016060705/j4yfhmzpuou.png\">与![]()
600)makesmallpic(this,600,1800);\' style=\"WIDTH: 32px; HEIGHT: 22px; VERTICAL-ALIGN: middle\" src=\"http://www_php168_com/91files/2016060705/yxbfk0suu3h.png\"> 的质量之比。?
(2)准确称取所制备的0.250?0?g?CuCl样品置于一定量的0.5![]()
600)makesmallpic(this,600,1800);\' style=\"WIDTH: 60px; HEIGHT: 22px; VERTICAL-ALIGN: middle\" src=\"http://www_php168_com/91files/2016060705/illrhsoyoub.png\">![]()
600)makesmallpic(this,600,1800);\' style=\"WIDTH: 38px; HEIGHT: 22px; VERTICAL-ALIGN: middle\" src=\"http://www_php168_com/91files/2016060705/mleamdmj5pj.png\">溶液中,待样品完全溶解后,加水20?mL,用0.1000![]()
600)makesmallpic(this,600,1800);\' style=\"WIDTH: 58px; HEIGHT: 21px; VERTICAL-ALIGN: middle\" src=\"http://www_php168_com/91files/2016060705/e1oe0ljd4gp.png\">![]()
600)makesmallpic(this,600,1800);\' style=\"WIDTH: 65px; HEIGHT: 24px; VERTICAL-ALIGN: middle\" src=\"http://www_php168_com/91files/2016060705/nsqanbjgtkm.png\">溶液滴定到终点,消耗24.60?mL![]()
600)makesmallpic(this,600,1800);\' style=\"WIDTH: 65px; HEIGHT: 24px; VERTICAL-ALIGN: middle\" src=\"http://www_php168_com/91files/2016060705/xd4hwgak1sc.png\">溶液。有关反应的离子方程式为:![]()
600)makesmallpic(this,600,1800);\' style=\"WIDTH: 392px; HEIGHT: 22px; VERTICAL-ALIGN: middle\" src=\"http://www_php168_com/91files/2016060705/sd4bnl2qihj.png\">通过计算说明上述样品中CuCl的质量分数是否符合标准。?
计算题 氯化亚铜(CuCl)是重要的化工原料。国家标准规定合格的CuCl产品的主要质量指标为Cu Cl的质量分数大于96.5%。工业上常通过下列反应制备CuCl:?
![]()
600)makesmallpic(this,600,1800);\' style=\"WIDTH: 414px; HEIGHT: 21px; VERTICAL-ALIGN: middle\" src=\"http://www_php168_com/91files/2016060705/nnlekrzahz0.png\">
(1)CuCl制备过程中需要配制质量分数为20.0%的![]()
600)makesmallpic(this,600,1800);\' style=\"WIDTH: 45px; HEIGHT: 21px; VERTICAL-ALIGN: middle\" src=\"http://www_php168_com/91files/2016060705/o0uz3cgubud.png\">溶液,试计算配制该溶液所需的![]()
600)makesmallpic(this,600,1800);\' style=\"WIDTH: 92px; HEIGHT: 23px; VERTICAL-ALIGN: middle\" src=\"http://www_php168_com/91files/2016060705/j4yfhmzpuou.png\">与![]()
600)makesmallpic(this,600,1800);\' style=\"WIDTH: 32px; HEIGHT: 22px; VERTICAL-ALIGN: middle\" src=\"http://www_php168_com/91files/2016060705/yxbfk0suu3h.png\">的质量之比。?
(2)准确称取所制备的0.250?0?g?CuCl样品置于一定量的0.5![]()
600)makesmallpic(this,600,1800);\' style=\"WIDTH: 60px; HEIGHT: 22px; VERTICAL-ALIGN: middle\" src=\"http://www_php168_com/91files/2016060705/illrhsoyoub.png\">![]()
600)makesmallpic(this,600,1800);\' style=\"WIDTH: 38px; HEIGHT: 22px; VERTICAL-ALIGN: middle\" src=\"http://www_php168_com/91files/2016060705/mleamdmj5pj.png\">溶液中,待样品完全溶解后,加水20?mL,用0.1000![]()
600)makesmallpic(this,600,1800);\' style=\"WIDTH: 58px; HEIGHT: 21px; VERTICAL-ALIGN: middle\" src=\"http://www_php168_com/91files/2016060705/e1oe0ljd4gp.png\">![]()
600)makesmallpic(this,600,1800);\' style=\"WIDTH: 65px; HEIGHT: 24px; VERTICAL-ALIGN: middle\" src=\"http://www_php168_com/91files/2016060705/nsqanbjgtkm.png\">溶液滴定到终点,消耗24.60?mL![]()
600)makesmallpic(this,600,1800);\' style=\"WIDTH: 65px; HEIGHT: 24px; VERTICAL-ALIGN: middle\" src=\"http://www_php168_com/91files/2016060705/xd4hwgak1sc.png\">溶液。有关反应的离子方程式为:![]()
600)makesmallpic(this,600,1800);\' style=\"WIDTH: 392px; HEIGHT: 22px; VERTICAL-ALIGN: middle\" src=\"http://www_php168_com/91files/2016060705/sd4bnl2qihj.png\">通过计算说明上述样品中CuCl的质量分数是否符合标准。?
本题答案：(1)5∶11
(2)符合
本题解析：
本题所属考点：【化学计算】
本题难易程度：【一般】
When Greek meets Greek,then comes the tug of war. 两雄相遇，其斗必烈。
