关于英文版化学实验报告篇一：英文版化学实验报告Title:PreparationofFescrapfromwaste(NH4)2SO4.FeSO4.6H2OThepurposeoftheexperimentLearnthemethodusedscrapironpreparationofferrousammoniumsulfate.Familiarwiththewaterbath,filtered,andevaporatedunderreducedpressureandcrystallizationbasicworking.Theexperimentalprinciple,theironandsulfuricacidtogeneratereactiveferroussulfate,ferroussulfateandammoniumsulfateinanaqueoussolutionofequalmolarinteraction,becomeslesssolublebluegenerateferrousammoniumsulfate.Fe+H2SO4=FeSO4+H2(gas)FeSO4+(NH4)2SO4+6H2O=(NH4)2SO4.FeSO4.6H2OUsuallyferrousrocksareeasilyoxidizedinair,butaftertheformationofrelativelystableperfunctory,nottobeoxidized.Experimenttouseinstruments,scales,constanttemperaturewaterbath,pumps,basins,cups,10mlgraduatedcylinder,asbestosmesh,glass,tripod,alcohollamp,funnel.Ironpiecestoasolidpharmaceuticaluse,useofacidammoniumsulfateand3mol/lofsulfuricacid,concentratedsulfuricacid.Theexperimentwasdividedintofoursteps.ThefirststepSaidironpowder4gintoabeakerandthen50ml10ml,3mol/LH2SO4wasaddedtothesamebeaker.Thesecondstepwillbethebeakerisheatedtonomorebubbles,andthenfilteredhotandthefiltratewasthenfilledin100mlbeaker.Thethirdstep,called4g(NH4)2SO4,andtheresultingammoniumsulfateand5.3mlofwatertoformasaturatedsolution,andthenaddittotheferroussulfatesolution,adjustedwithconcentratedsulfuricacidtoPH=1.Afourthstep,thethirdstepthesolutionwasheatedinawaterbathtothesurfaceuntilthefilmiscrystallized,itwasslowlycooledandthenfilteredunderreducedpressuretostandfinallydried,weighedandtheyieldwascalculated.Theresultsobtained8.1gbluishpowderycrystals.Havethisresultwecancalculateyield,startingwiththefirststepwetriedtoknowtheamountofiron,shouldthiswecancalculatethetheoreticalsulfateferroussulfateis0.03mol,thenferroussulfateobtainedbythe0.03molFeSO4theoreticalvalueofammonium.FeSO4+〔NH4〕2SO4+6H2O=FeSO4.(NH4)2SO4.6H2O0.03molXmolX=0.03molm=XM=0.03molⅹ392g/mol=11.76gYield=theactualvalueoftheformulaisdividedbythetheoreticalvalueby100%.itwillbecalculatedinto...
