Video: Qhov loj feem pua ntawm cov dej hauv hydrate CuSO4 5h2o yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A mole ntawm CuSO4•5H2O muaj 5 moles dej (uas sib haum rau 90 grams dej) ua ib feem ntawm nws cov qauv. Yog li, cov tshuaj CuSO4•5H2O ib txwm muaj 90/250 lossis 36% dej los ntawm qhov hnyav.
Ib yam li ntawd, koj tuaj yeem nug, ua li cas koj pom qhov loj feem pua ntawm cov dej hauv hydrate?
Faib cov pawg ntawm dej poob los ntawm pawg ntawm hydrate thiab muab faib los ntawm 100. Theoretical (qhov tseeb) feem pua hydration ( feem pua dej ) tuaj yeem yog xam los ntawm qauv ntawm hydrate los ntawm kev faib cov pawg ntawm dej nyob rau hauv ib tug mole hydrate ntawm molar pawg ntawm hydrate thiab muab faib los ntawm 100.
Tom qab ntawd, lo lus nug yog, qhov loj ntawm CuSO4 5h2o yog dab tsi? 159,609 g / mol
Raws li qhov no, qhov loj feem pua ntawm cov dej hauv tooj liab II sulfate hydrate yog dab tsi?
159.62 / 249.72 * 100 = 63.92 feem pua . Qhov no txhais tau tias 100-gram qauv ntawm tooj liab sulfate pentahydrate yuav muaj 63.92 grams tooj liab sulfate . Nws kuj txhais tau tias tooj liab sulfate pentahydrate 100 - 63.92 = 36.08 feem pua dej los ntawm pawg.
Vim li cas CuSO4 5h2o suav tias yog hydrate?
Yog vim li cas CuSO 4 . 5 h20 yog suav tias yog 'Hydrate ', los yog ntau dua yog 'pentahydrate' yog vim cov dej molecules uas tau muab tso rau hauv cov crsytals hauv hydrated daim ntawv.
Pom zoo:
Qhov loj feem pua ntawm cov pa oxygen hauv potassium sulfate yog dab tsi?
Cov feem pua ntawm cov ntsiab lus Element Symbol Mass Percent Oxygen O 36.726% Sulfur S 18.401% Potassium K 44.874%
Qhov feem pua ntawm qhov loj ntawm BR hauv CuBr2 yog dab tsi?
Cov feem pua ntawm cov ntsiab lus Element Symbol Mass Percent Copper Cu 28.451% Bromine Br 71.549%
Dab tsi yog qhov yuam kev loj tshaj plaws yog tias Irina ntsuas qhov ntev ntawm nws lub qhov rais li 3.35 feet qhov yuam kev loj tshaj plaws yog taw?
Kev daws: Qhov yuam kev loj tshaj plaws hauv kev ntsuas ntsuas tau txhais tias yog ib nrab ntawm qhov ntsuas ntsuas
Dab tsi yog qhov tseem ceeb tshaj plaws uas yuav tsum muaj rau cov kua dej ntws hauv cov kav dej Dab tsi lwm yam cuam tshuam rau cov dej ntws?
Thaum ib qho kev quab yuam sab nraud yog exerted rau ntawm cov kua uas muaj, qhov tshwm sim siab yog kis sib npaug thoob plaws hauv cov kua. Yog li txhawm rau kom dej ntws, dej xav tau qhov sib txawv siab. Cov kav dej kuj tuaj yeem cuam tshuam los ntawm cov kua dej, cov yeeb nkab loj, qhov kub thiab txias (cov kav dej khov), cov kua dej ntom ntom
Qhov loj feem pua ntawm zinc nyob rau hauv zinc II phosphate yog dab tsi?
Cov feem pua ntawm cov ntsiab lus Element Symbol Mass Percent Zinc Zn 50.803% Oxygen O 33.152% Phosphorus P 16.045%