莫尔法以为指示剂，在条件下以 硝酸银为标准溶液直接滴定Cl-或 Br-等离子。
查看答案
佛尔哈德法以为指示剂，用为标准溶液进行滴定。根据测定对象不同佛尔哈德法可分为直接滴定法和返滴滴定法，直接滴定法用来测定，返滴定法测定。
佛尔哈德返滴定法测定时，会发生沉淀转化现象，解决的方法一般有两种：一是，二是。
What statements about IKEA are true?
A. The big yellow letters IKEA on a blue background can been seen from far away.
B. We had to pass through a big door that turned like a wheel before entering the shop.
C. The billboard of IKEAis lower than the trees
D. About ten people can walk inside one section of the wheel.
What statements about the play room are ture?
A. Children can play for 2 hours or just one hour on busy days.
B. It is suitable for thosechildren aged 2 to 6.
C. They give parents a piece of paper with the time of collection written on it
D. They send the children to their parents.
微信支付 
支付宝支付