Video: Koj ua li cas kuaj cov kua qaub thiab cov hauv paus?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Dip ib kawg ntawm daim ntawv xiav litmus rau hauv cov tshuaj, ces tshem tawm sai sai. Daim ntawv xiav litmus kuaj rau acidic kev daws teeb meem. Nws yuav tam sim tig liab yog tias cov tshuaj yog acidic . Nws yuav nyob xiav yog tias qhov kev daws teeb meem yog nruab nrab lossis yooj yim.
Ntxiv mus, qhov kev xeem ntawm lub hauv paus yog dab tsi?
Rau kuaj lub xub ntiag ntawm a puag Hauv cov khoom, peb tuaj yeem siv acid- puag cov ntsuas xws li ntawv litmus. Yog tias koj dip xiav litmus ntawv rau hauv cov kua qaub, nws cov xim yuav hloov mus rau xim liab thiab vice versa rau cov tshuaj yooj yim. Cov saj ntawm acids thiab hauv paus kuj txawv. Acids yog qaub whereas hauv paus yog iab.
Ib yam li ntawd, qhov kev xeem twg yuav pab Ramesh sib txawv ntawm cov kua qaub thiab lub hauv paus? Litmus ntawv, pH ntawv, ntsuas thiab pH ntsuas ua tau siv rau xeem seb ib yam khoom yog acidic los yog yooj yim. Litmus ntawv yog siv los txiav txim seb puas muaj cov tshuaj aqueous yog acidic (pH7.0) nyob rau hauv cov xwm.
Ib yam li ntawd, qhov ntsuas ntawm cov kua qaub thiab lub hauv paus yog dab tsi?
Acid - lub hauv paus ntsuas yog cov tshuaj siv los txiav txim seb puas muaj cov tshuaj aqueous acidic , nruab nrab, los yog alkaline. Vim tias acidity thiab alkalinity cuam tshuam rau pH, lawv kuj tseem hu ua pH ntsuas . Piv txwv ntawm kua qaub - lub hauv paus ntsuas suav nrog litmus ntawv, phenolphthalein, thiab kua txiv hmab txiv ntoo liab.
Dab tsi yog pH ntawm dej?
pH thiab Dej Cov pH ntawm ntshiab dej yog 7. Feem ntau, dej nrog a pH qis dua 7 yog suav tias yog acidic, thiab nrog a pH ntau dua 7 yog suav tias yog qhov yooj yim. Qhov ib txwm muaj rau pH hauv nto dej systems yog 6.5 rau 8.5, thiab cov pH Qhov nruab nrab ntawm cov dej hauv av yog nruab nrab ntawm 6 txog 8.5.
Pom zoo:
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
Peb siv cov kua qaub thiab cov hauv paus hauv lub neej txhua hnub li cas?
Cov tshuaj txhuam hniav thiab tshuaj tiv thaiv kab mob yog cov piv txwv zoo ntawm cov khoom lag luam thaum cov khoom noj xws li kua txiv kab ntxwv lossis txiv kab ntxwv yog cov kua qaub heev. Qhov ntsuas pH. Lub pH nplai khiav los ntawm 1 txog 14 thiab qhia txog ntau yam ntawm cov kua qaub thiab cov hauv paus ntawm sab saum toj mus rau hauv qab. Tshuaj txhuam hniav thiab pH. pH ntawm cov khoom noj khoom haus. Acid Neutralizing Tshuaj. Cov khoom siv ntxuav
Dab tsi yog qee cov kua qaub hauv tsev thiab cov hauv paus?
Daim ntawv teev cov tsev Bases & Acids Baking Soda. Baking soda yog lub npe nrov rau sodium bicarbonate, paub tshuaj raws li NaHCO3. Diluted Soaps. Tsev neeg Ammonia. Tsev Neeg Vinegar. Citric Acid
Koj pom li cas pH ntawm qhov sib npaug ntawm cov kua qaub thiab lub hauv paus muaj zog?
Ntawm qhov sib npaug, qhov sib npaug ntawm H + thiab OH- ions yuav sib xyaw ua H2O, ua rau pH ntawm 7.0 (tsis nruab nrab). Lub pH ntawm qhov sib npaug ntawm qhov sib npaug ntawm qhov titration yuav ib txwm yog 7.0, nco ntsoov tias qhov no tsuas yog muaj tseeb rau titration ntawm cov kua qaub muaj zog nrog lub hauv paus muaj zog