英语翻译Into a 250 mL threenecked,round-bottom flask equipped with a magnetic stirbar,anitrogen inlet,and a Dean–Stark trap were charged phenol (61.0g,0.648 mol),toluene (60 mL),and KOH (30.3g,0.540 mol),andthe resulting mixture was heated at 1

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/03 11:00:20
英语翻译Into a 250 mL threenecked,round-bottom flask equipped with a magnetic stirbar,anitrogen inlet,and a Dean–Stark trap were charged phenol (61.0g,0.648 mol),toluene (60 mL),and KOH (30.3g,0.540 mol),andthe resulting mixture was heated at 1

英语翻译Into a 250 mL threenecked,round-bottom flask equipped with a magnetic stirbar,anitrogen inlet,and a Dean–Stark trap were charged phenol (61.0g,0.648 mol),toluene (60 mL),and KOH (30.3g,0.540 mol),andthe resulting mixture was heated at 1
英语翻译
Into a 250 mL threenecked,round-bottom flask equipped with a magnetic stirbar,a
nitrogen inlet,and a Dean–Stark trap were charged phenol (61.0
g,0.648 mol),toluene (60 mL),and KOH (30.3g,0.540 mol),and
the resulting mixture was heated at 145 °C for 3 h with water
collected in the Dean–Stark trap.Then,excess phenol and water
were removed under reduced pressure at 160°C for 3 h.Copper
(1.0 g),5-bromo-m-xylene (20.0 g,0.108 mol),and phenol (30 mL)
were added to the dry salt.

英语翻译Into a 250 mL threenecked,round-bottom flask equipped with a magnetic stirbar,anitrogen inlet,and a Dean–Stark trap were charged phenol (61.0g,0.648 mol),toluene (60 mL),and KOH (30.3g,0.540 mol),andthe resulting mixture was heated at 1
一个250毫升的三颈烧瓶配备磁力搅拌棒,通入氮气,安装分水器,此装置加入酚(61.0g,0.648摩尔),甲苯(60毫升),和氢氧化钾(30.3g,0.540摩尔),和由此产生的混合物加热,在具有分水器的容器中145°C 3 小时.然后,投入过量苯酚和减压下除去在160°C 3小时铜(1克),5-bromo-m-xylene(20克,0.108摩尔),苯酚(30毫升)被添加到干盐.

 250毫升3个,圆底烧瓶配有磁性stirbar,
  氮入口,Dean-Stark陷阱被指控苯酚(61.0
  g、0.648摩尔)、甲苯(60毫升),和KOH(30.3克,30.3摩尔)
  由此产生的混合物被加热在145°C 3 h与水
  收集在Dean-Stark陷阱。然后,多余的苯酚和水
  在160°C下切除减压3 h。铜
  (1.0...

全部展开

 250毫升3个,圆底烧瓶配有磁性stirbar,
  氮入口,Dean-Stark陷阱被指控苯酚(61.0
  g、0.648摩尔)、甲苯(60毫升),和KOH(30.3克,30.3摩尔)
  由此产生的混合物被加热在145°C 3 h与水
  收集在Dean-Stark陷阱。然后,多余的苯酚和水
  在160°C下切除减压3 h。铜
  (1.0克),5-bromo-m-xylene(20.0克,20.0摩尔)和苯酚(30毫升)
被添加到干燥的盐。

收起

到一个250毫升的threenecked,圆底烧瓶配备磁力搅拌棒,通入氮气,安装分水器,被指控酚(61.0g,0.648摩尔),甲苯(60毫升),和氢氧化钾(30.3g,0.540摩尔),和由此产生的混合物加热,在145°C 3 H watercollected在院长。然后,投入过量苯酚和减压下除去在160°C 3小时铜(1克),5-bromo-m-xylene(20克,0.108摩尔),苯酚(3...

全部展开

到一个250毫升的threenecked,圆底烧瓶配备磁力搅拌棒,通入氮气,安装分水器,被指控酚(61.0g,0.648摩尔),甲苯(60毫升),和氢氧化钾(30.3g,0.540摩尔),和由此产生的混合物加热,在145°C 3 H watercollected在院长。然后,投入过量苯酚和减压下除去在160°C 3小时铜(1克),5-bromo-m-xylene(20克,0.108摩尔),苯酚(30毫升)被添加到干盐。

收起

英语翻译research into a disease. 英语翻译是关于一种食用糖的化学测试的:MethanolInternal Standard Solution:Pipet 1.0 mL of n-propanol into a 100-mL.volumetric flask,dilute to volume with pyridine,and mix.Transfer 5.0 mL of this solution into a 500-mL volumetric flask 英语翻译Into a 250 mL threenecked,round-bottom flask equipped with a magnetic stirbar,anitrogen inlet,and a Dean–Stark trap were charged phenol (61.0g,0.648 mol),toluene (60 mL),and KOH (30.3g,0.540 mol),andthe resulting mixture was heated at 1 英语翻译Acculturation—generally,what happens when people socialize in one (minority) culture migrate and socome into continuous first-hand contact with a new (dominant) culture—has been a central topic for the social sciences atleast since th 英语翻译This Agreement,hereafter the “Agreement” is entered into this 14th day of August 2007 the “Effective Date”,by and between (among);表示和谁谁签订这个合同Party A:Eastside Consultants S.A.(股份公司)herby referred t 英语翻译throw a fist into the air 英语翻译1.Selective schools do enhance their graduates' lifetime earnings.2.highly selective school3.The stakes have been vastly exaggerated.4.A well-known study examined students who got into highly selective schools and then went elsewhere.5.Th 英语翻译The Supreme Court let a 9th circuit decision stand,and Data General was eventually forced into licensing the Operating System software because it was ruled that restricting the license to only DG hardware was an illegal tying arrangement. 英语翻译What needs to happen before the guidance can be implemented?Systemic and cultural change is needed to move shared decision making beyond interactions between health professionals and patients into the realm of becoming a requirement at th 英语翻译the company and Rhodia have entred into partnership in 2010 to equip Rhodia assets with PV and created a spv in which the company participates alongside Rhodia Energy and third parties to finance Rhodia Energy manufacturing rooftops in th 英语翻译A.September 25th,2010.B.July 25th,2010.C.September 25th,2009.D.July 25th 2009. 英语翻译with nothing but a word or two to go by ,your mind produced a stereotypedpicture of the person rather than a real onedid the labels on these people mislead you into making the usual choices?then you readtoo much into them.the harm is th 英语翻译Total glucose concentration was measured by phenolvitriol method.One milliliter of the supernatant for each treatment was accurately taken and filled into a 10 ml cuvette.Then 0.5 ml,6% phenol was added into the cuvette and shaken-up.Then add a sachrt of jelly powder with 200ml boiling water into a container是什么意思? 英语翻译Overnight into the 16th september 2004 we saw the winds strengthen over the northwest of the U.K..Those mighty winds pulled in a bank of cloud and some patchy rain through the small hours and into the first part of the morning.(另a bank kick into touch什么意思kick th idea into touch 英语翻译An empty soda can with a few ml of water inside is heated to steaming and quickly inverted into anice water bath.The can is instantly crushed because The best love is the one that makes you a better person,without changing you into someone other th