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滴定分析操作与注意事项
进行滴定分析时,先将试样制备成溶液置于容器(通常为锥形瓶)中,在适宜的反应条件下,将滴定剂由滴定管加到被测物质的溶液中,直到两者按照一定的化学方程式所表示的计量关系完全反应为止,这时称反应到达化学计量点,简称计量点,以sp表示。
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今日热点
‘This has gone too far’
SK president impeached
Tornado touches down in CA
Snow, ice storms forecast
Sentenced for shootings
Defamation suit settlement
Pelosi undergoes surgery
Abandons bail appeal
Airboats collide in Florida
Mango founder dies at 71
Special missions envoy pick
Sues New York doctor
Trump eyes privatizing USPS
Hunter wins Heisman Trophy
Becomes Georgia's pres
Advance to NBA Cup final
To lead intelligence board
To end daylight saving time?
UKR targets RU oil facility
Former SC lawmaker dies
Settle sexual assault suit
To hear CA emissions case
First human case in La.
Bid to delay US ban denied
GA judge denies motion
Workers authorize strike
Geminid meteor shower
US obesity rates drop
Denied new trial
Pearl Harbor survivor dies
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