Qhov sib txawv tseem ceeb ntawm qhov ua tau zoo thiab qhov yuam kev titration yog qhov normality factor muab qhov sib piv ntawm tus nqi pom thiab tus nqi theoretical whereas titration yuam kev muab qhov txawv ntawm qhov pom qhov kawg thiab qhov kawg ntawm qhov titration.
Qhov xwm txheej zoo thiab qhov yuam kev titration yog qhov tseem ceeb hauv analytical chemistry rau kev txiav txim siab ntawm qhov sib txawv ntawm qhov pom tau los ntawm cov txiaj ntsig theoretically tseeb rau tib qhov kev sim.
Dab tsi yog qhov xwm txheej zoo li cas?
Normality factor yog qhov piv ntawm qhov pom tus nqi thiab tus nqi theoretical ntawm qhov hnyav nrog rau kev npaj cov tshuaj. Hauv lwm lo lus, qhov normality yam yog hais txog qhov sib piv ntawm qhov ntsuas qhov hnyav ntawm cov kuab tshuaj rau qhov ntsuas qhov ntsuas ntawm cov kua uas yuav tsum tau ua hauv kev npaj cov tshuaj uas xav tau nrog tus nqi qub.
Qhov normality ntawm kev daws yog hais txog gram qhov hnyav ntawm cov kua uas muaj nyob hauv ib liter ntawm cov tshuaj. Yog li ntawd, peb tuaj yeem hu nws ua qhov sib npaug concentration. Lub cim rau normality yog "N". Feem ntau, chav ntsuas ntawm qhov qub yog eq / L (sib npaug ib liter). Rau qhov tsawg heev, peb tuaj yeem siv chav ua meq/L (milliequivalent per liter).
Txoj kev yooj yim tshaj plaws los xam qhov normality ntawm kev daws yog siv cov molarity ntawm cov tshuaj. Piv txwv li, 1 M sulfuric acid muaj 2 N normality nyob rau hauv acid-puag tshua vim hais tias ib tug sulfuric acid molecule yuav muab ob moles ntawm hydrogen ions. Tom qab ntawd peb tuaj yeem txiav txim siab qhov normality los ntawm kev faib cov normality nrog molarity; e.g. Qhov zoo tshaj plaws rau sulfuric acid yog 2. Txawm li cas los xij, txoj hauv kev zoo tshaj plaws ntawm kev txiav txim siab qhov normality yog qhov suav ntawm qhov ntsuas qhov hnyav ntawm cov kuab tshuaj uas muaj nyob rau hauv kev daws teeb meem thiab suav cov theoretical qhov hnyav.
Titration yuam kev yog dab tsi?
Titration yuam kev yog qhov sib txawv ntawm qhov kawg thiab qhov sib npaug ntawm qhov titration. Hauv lwm lo lus, lo lus titration yuam kev yog hais txog qhov ntim ntawm qhov kawg uas siab dua lossis qis dua qhov sib npaug ntawm qhov sib npaug. Qhov kawg ntawm titration yog qhov pom qhov kawg ntawm cov tshuaj tiv thaiv uas muab kev hloov xim.
Txawm li cas los xij, qhov sib npaug ntawm qhov sib npaug yog qhov ntim qhov tseeb qhov twg cov tshuaj tiv thaiv hauv lub khob titration nres. Qhov kawg ntawm qhov titration yog lub ntsiab lus uas cov tshuaj tiv thaiv xaus raws li qhov taw qhia siv hauv titration.
Dab tsi yog qhov txawv ntawm qhov xwm txheej zoo thiab qhov yuam kev titration?
Cov ntsiab lus normality factor thiab titration yuam kev piav qhia txog qhov txawv ntawm qhov tshwm sim uas tau los ntawm ib qho kev sim tshwj xeeb nrog rau cov txiaj ntsig theoretically xam. Qhov tseem ceeb sib txawv ntawm normality factor thiab titration yuam kev yog qhov normality factor muab qhov ratio ntawm ib tug pom tus nqi thiab cov theoretical tus nqi whereas titration yuam kev muab qhov txawv ntawm qhov pom qhov kawg thiab qhov kawg kawg ntawm titration.
Ntxiv mus, qhov zoo li qub yog qhov piv thaum titration yuam kev yog qhov txawv ntawm ob qhov txiaj ntsig.
Hauv qab infographic qhia txog qhov sib txawv ntawm qhov zoo li qub thiab qhov yuam kev titration.
Summary – Normality Factor vs Titration Error
Normality factor thiab titration error yog ib qho tseem ceeb hauv analytical chemistry rau kev txiav txim siab ntawm qhov sib txawv ntawm qhov pom tau los ntawm qhov tseeb qhov tseeb rau tib qhov kev sim. Qhov tseem ceeb sib txawv ntawm normality factor thiab titration yuam kev yog qhov normality factor muab qhov ratio ntawm ib tug pom tus nqi thiab cov theoretical tus nqi whereas titration yuam kev muab qhov txawv ntawm qhov pom qhov kawg thiab qhov kawg kawg ntawm titration.
