meili 发表于 2022-10-27 16:11:43

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

<p>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
<p>答案:↓↓↓<p class="nav-title mt10" style="border-top:1px solid #ccc;padding-top: 10px;">方明星的回答:<div class="content-b">网友采纳  Theaccuratenametakes1gramsample,putsinthe250mlbeaker,addsthe100mlwaterdissolution.Adds4mlthe6mol/lhydrochloricacid,heatsuptotheebullition,untilthentheagitation,simultaneouslyjoinstheebullitionthebariumchloridestandardfluidthesulfateradicalcompletesedimentation.Againaddsthe2mlbariumchloridestandardfluid,thevaporbath1hour.Withtheashlessfilterpaperfiltrationmixture,willprecipitateputsinthefilter,precipitatesbythehotlaunderinguntilthe1mlsilvernitratestandardfluidjoinsinthe5mlcleaningsolutionnottoprecipitatetheproduction.Willincludetheprecipitationpapertoputinthetartobecrucible.Thecarbonizationpaperdoesnotappearburning,theignitioncausesgoodsmaintenanceconstantweightcrucible.
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查看完整版本: 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