阿司匹林的两步滴定法（） -题库考试答案搜索网

阿司匹林的两步滴定法（）

单选题

2021-09-07 21:19

A、第一步滴定是为了中和所有的酸，含量以第二步样品消耗的硫酸滴定剂量计算
B、第一步滴定是为了消除干扰，含量以两步滴定消耗的氢氧化钠滴定剂量的差值计算
C、第一步滴定是为了水解样品，含量以第二步消耗的氢氧化钠滴定剂量计算
D、第一步滴定是为了中和所有的酸，含量以第二步样品水解时消耗的氢氧化钠量计算
E、第一步滴定是为了中和所有的酸，含量以第二步样品水解时消耗的硫酸量计算

查看答案

正确答案

D

试题解析

标签：药剂学深圳药师上岗能力测试

感兴趣题目

Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo，without the authorization or privity of the Shipowner or his agent，is（）.

（）, or drum is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.

A salvor may be（）the whole or part of the payment due under Salvage Convention to the extent that the salvage operations have become necessary or more difficult because of fault or neglect on his part or if the salvor has been guilty of fraud or other dishonest conduct.

The （） is used for hauling in or letting out the wires or ropes.

Vessels must be（）valid certificate of nationality or certificated of registry or license.

When loading or discharging dry mud or cement，crew members should use goggles and（）.

Effects which are dutiable or subject to prohibitions or restrictions should be declared in （）.

The（）may examine or re-examine the goods or take samples from them straightaway in the absence of the consignee or the consignor whenever it considers this necessary.

（）are liable to be stoten, pilfered or may damaged due to improper handing or stowage.

Banks have no liability for any delay or loss caused by postal or telex failure.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

相关题目: boost的意思是:help or encourage to increase or improve; eloquent的意思是:fluent or persuasive in speaking or writing; A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.; 中药剂工作人员在药房工作中，应掌握常用药物的功能.主治.要求能判定处方药物的运用正确与否，这是中药剂药师调剂处方时应负的法律责任。能温阳止泻药有（）。; 阿司匹林的两步滴定法（）; 采用两步整定法整定串级控制系统的主、副调节器参数，其原则是“先副后主”。; 用两步滴定法滴定阿司匹林的含量; 两步滴定法测定阿司匹林片剂含量时计算阿司匹林含量的依据是（）; Mainly east 3 or 4 partly cloudy to overcast occasional rain（）slowly south moderate or good.; （）any case or suspected case of quarantinable disease，or any case of eruptive disease or any death be discovered，the local quarantine officer must be notified immediately．; Should any case or suspected case of quarantinable disease，or any case of eruptive disease or any death be discovered，the local Quarantine Officer must be（）immediately.; Masters are（）solely responsible for all damages or accidents of whatever kind resulting from the navigating or handling of their vessels by day or by night.; 系统中雷达状态包括Unknown、Operational（or ON）、Failed（or OFF）、Detached。; The carrier is liable for loss of or damage to the goods or delay in delivery caused by fire，（）the claimant proves that the fire arose from fault or neglect on the part of the carrier，his servants or agents.; Shutdown price（or point，or rule）停业价格（或停业点、停业原则）; 翻译：With Average or With Particular Average（WA or WPA）（）; 直接酸碱滴定法测定阿司匹林含量时，所用的“中性乙醇”溶剂是指（）。; （）shall be liable for loss of and damage to the Vessel and／or goods arising or resulting from inaccuracies in stating the description，quantity，weight，measurement or contents.; 我们经常在搜索时使用组合关键词来提高检索的效率，下列表达式中，具有相同搜索效果的是（）。 ①深圳夜景 ②深圳OR夜景 ③深圳-夜景 ④深圳+夜景; 两步整定法就是，就是第一步（），第二步（）。

广告位招租WX:84302438

题库考试答案搜索网

免费的网站请分享给朋友吧