Cov txheej txheem:
Video: Peb siv cov kua qaub thiab cov hauv paus hauv lub neej txhua hnub li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
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. Qhov ntsuas pH khiav ntawm 1 txog 14 thiab qhia txog qhov ntau ntawm acids thiab bases los 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.
Ib yam li ntawd, peb siv cov kua qaub li cas hauv lub neej txhua hnub?
Ib txwm, txhua hnub acids xws li vinegar, muriatic acid (ntxuav cov vuas thiab pob zeb - aka hydrochloric acid), tartaric acid ( siv hauv ci), ascorbic acid (vitamin C), thiab salicylic acid (exfoliant thiab precursor rau aspirin).
Tsis tas li ntawd, cov kua qaub thiab cov hauv paus cuam tshuam li cas rau peb lub neej niaj hnub piav nrog piv txwv? Acids thiab bases cuam tshuam rau lub neej txhua hnub vim tias lawv ua lub luag haujlwm hauv ntau qhov kev cuam tshuam, los ntawm kev zom zaub mov mus rau ntxuav xab npum los ntawm phab ntsa da dej. Cov kua qaub muaj pH tsawg dua 7.0, thaum hauv paus muaj pH ntau dua 7.0. Cov zaub mov qaub saj li ntawd vim yog lawv acidity.
Raws li txoj cai, peb siv cov hauv paus hauv lub neej txhua hnub li cas?
Nov yog 10 lub hauv paus uas feem ntau pom hauv tsev neeg:
- Ammonia, tshuaj chiv, tshuaj ntxuav tes
- Sodium hydroxide, NaOH (tus neeg saib xyuas, ntawv, pH regulator)
- Sodium carbonate, (daim ntawv, iav, tshuaj ntxuav tes, tshuaj txhuam hniav)
- Sodium bicarbonate, (baking soda, tua hluav taws, tshuaj txhuam hniav)
Dab tsi yog kev siv cov kua qaub thiab cov hauv paus?
Kev Siv Cov Acids thiab Bases
- Vinegar: Feem ntau siv hauv chav ua noj, nws suav nrog 3-6% acetic acid.
- Kev Siv Hluav Taws Xob: Nitric acid thiab sulfuric acid yog ob qho tib si siv hauv chiv, dyes, xim thiab tawg.
- Roj teeb: Sulfuric acid yog siv rau hauv cov roj teeb uas khiav hauv tsheb thiab teeb nyem rau npe rau ob peb tug.
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
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 ua li cas kuaj cov kua qaub thiab cov hauv paus?
Dip ib kawg ntawm daim ntawv xiav litmus rau hauv cov tshuaj, ces tshem tawm sai sai. Cov ntawv xiav litmus kuaj rau cov kua qaub. Nws yuav tig liab tam sim yog tias cov tshuaj yog acidic. Nws yuav nyob xiav yog tias qhov kev daws teeb meem yog nruab nrab lossis yooj yim
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
Cov piv txwv ntawm tsev neeg cov kua qaub thiab cov hauv paus yog dab tsi?
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