Video: Yuav siv cov tshuaj neutralization li cas los nrhiav cov concentration ntawm cov kua qaub?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ib qho titration yog ib qho kev sim uas tswj tau kua qaub - Base neutralization cov tshuaj tiv thaiv yog siv los txiav txim tus tsis paub concentration ntawm acid los yog a puag . Qhov sib npaug taw tes yog mus txog thaum tus naj npawb ntawm hydrogen ions sib npaug ntawm cov hydroxide ions.
Xav txog qhov no, koj yuav ua li cas pom qhov concentration ntawm cov tshuaj tiv thaiv neutralization?
Re: xam cov concentrations ntawm neutralization cov tshuaj tiv thaiv Faib qhov ntawd los ntawm qhov ntim ntawm H2YOG4 daws thiab koj muaj koj tus kheej lub molarity / concentration.
Ib yam li ntawd, tus qauv rau titration yog dab tsi? Siv cov titration formula . Yog hais tias tus titrant thiab analyte muaj ib tug 1: 1 mole ratio, lub qauv yog molarity (M) ntawm cov kua qaub x ntim (V) ntawm cov kua qaub = molarity (M) ntawm lub hauv paus x ntim (V) ntawm lub hauv paus. (Molarity yog qhov concentration ntawm cov tshuaj qhia raws li tus naj npawb ntawm moles ntawm solute ib liter ntawm kev daws.)
Ib yam li ntawd, tib neeg nug, pes tsawg moles ntawm Naoh yuav tsum tau ua kom tsis muaj kua qaub?
1 Teb. Koj xav tau 3 mol ntawm sodium hydroxide rau neutralize 1 mol ntawm phosphoric kua qaub.
Koj txiav txim siab li cas?
Tus qauv qauv yog C = m / V, qhov C yog qhov concentration , m yog qhov loj ntawm cov kuab tshuaj yaj, thiab V yog tag nrho cov ntim ntawm cov tshuaj. Yog koj muaj me me concentration , nrhiav cov lus teb nyob rau hauv seem ib lab (ppm) kom yooj yim ua raws.
Pom zoo:
Yuav ua li cas yog tias ib qho me me ntawm cov kua qaub ntxiv rau hauv cov tshuaj buffered?
Nws yog tsim los ntawm kev sib xyaw loj ntim ntawm cov kua qaub tsis muaj zog lossis tsis muaj zog nrog nws cov conjugate puag lossis acid. Thaum koj ntxiv me me ntawm cov kua qaub lossis alkali (hauv paus) rau nws, nws cov pH tsis hloov pauv loj. Hauv lwm lo lus, cov tshuaj tsis txwv tsis pub cov kua qaub thiab lub hauv paus los ntawm kev sib xyaw ua ke
Koj puas ntxiv cov kua qaub rau hauv lub hauv paus lossis lub hauv paus rau cov kua qaub?
Ntxiv cov kua qaub ua kom cov concentration ntawm H3O + ions hauv cov tshuaj. Ntxiv ib lub hauv paus txo cov concentration ntawm H3O + ions hauv cov tshuaj. Cov kua qaub thiab lub hauv paus zoo li cov tshuaj tiv thaiv. Yog hais tias lub hauv paus yog ntxiv rau cov kua qaub, cov tshuaj yuav tsis acidic thiab txav mus rau nruab nrab ntawm pH nplai
Yuav ua li cas koj txiav txim siab npaum li cas ntawm cov kua qaub uas yuav tsum tau neutralize lub hauv paus?
Kev daws qhov teeb meem Acid-Base Neutralization Kauj Ruam 1: Muab xam cov moles ntawm OH-. Molarity = moles / ntim. moles = Molarity x Volume. moles OH- = 0.02 M/100 milliliters. Kauj ruam 2: Xam qhov ntim ntawm HCl xav tau. Molarity = moles / ntim. Volume = moles/molarity. Volume = moles H+/0.075 Molarity
Cov tshuaj twg yog ib txwm tsim los ntawm cov tshuaj tiv thaiv neutralization?
Cov tshuaj tiv thaiv acid-base neutralization ib txwm ua rau ntsev. Qee zaum dej tsuas yog tsim cov tshuaj tiv thaiv uas muaj cov ntses bass thaj tsam muaj zog. Yog li cov lus teb yog ntsev
Hom tshuaj twg tuaj yeem cuam tshuam nrog cov kua qaub los ua cov ntsev soluble?
Lub hauv paus yog ib yam khoom uas reacts nrog ib tug acid los tsim ib tug ntsev thiab dej xwb