问题:请翻译一下检测步骤准确称取1克样品,放入250ml烧杯中,加100ml水溶解.加4ml的6mol/l盐酸,加热至沸腾,然后搅拌,同时加入沸腾的氯化钡标准液直至硫酸根完全沉淀.再加2ml氯化钡标准液,蒸气浴1小
答案:↓↓↓ 方明星的回答: 网友采纳 Theaccuratenametakes1gramsample,putsinthe250mlbeaker,addsthe100mlwaterdissolution.Adds4mlthe6mol/lhydrochloricacid,heatsuptotheebullition,untilthentheagitation,simultaneouslyjoinstheebullitionthebariumchloridestandardfluidthesulfateradicalcompletesedimentation.Againaddsthe2mlbariumchloridestandardfluid,thevaporbath1hour.Withtheashlessfilterpaperfiltrationmixture,willprecipitateputsinthefilter,precipitatesbythehotlaunderinguntilthe1mlsilvernitratestandardfluidjoinsinthe5mlcleaningsolutionnottoprecipitatetheproduction.Willincludetheprecipitationpapertoputinthetartobecrucible.Thecarbonizationpaperdoesnotappearburning,theignitioncausesgoodsmaintenanceconstantweightcrucible. |