0.01 mol/L碘标准液怎样配制?
0.01 mol/L碘标准液怎样配制?
化学人气：683 ℃时间：2019-12-08 03:35:49
优质解答
粗配：称取2.5 g碘及～7 g碘化钾,溶于少量水中,然后移入1 L棕色瓶中,加水稀释至1 L,摇匀.标定：准确量取20 ml～25 ml碘液,加50 ml水、30ml 0.01 M盐酸,摇匀,用 0.01 M的Na2S2O3标准溶液滴定近终点（微黄色）时加30ml...
我来回答
类似推荐
猜你喜欢
- 1is inviting you to join Facebook.Once you join,you'll be able to see updates,photos and more from all of these friends .
- 2MR Wang is busy working at his office是啥意思?
- 3My parents are c_____ going to Shanghai for the next holiday.
- 4what happened to him?
- 518立方分米=()立方米
- 6关于年少轻狂的诗句
- 7英语翻译
- 8X-1的绝对值除以X+2的绝对值小于1,解这个不等式.方法有3种.我忘记了,
- 9甲数的四分之三等于乙数的九分之二,甲乙两数的比是几比几?
- 10用min{a,b,c}表示abc 三个数中的最小值.设f(x)=min{2^x,x+2,10-x}(x>0) 则函数最大值是