Cov txheej txheem:
Video: Cov piv txwv ntawm tsev neeg cov kua qaub thiab cov hauv paus yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2024-01-18 08:15
Daim ntawv teev cov tsev neeg 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.
Ib yam li ntawd, qee qhov piv txwv ntawm tsev neeg hauv paus yog dab tsi?
Cov khoom siv tshuaj hauv tsev muaj xws li ammonia, baking soda thiab lye
- Baking Soda. Baking soda, los yog sodium bicarbonate (NaHCO3) muaj pH ntawm 8.3, siab tshaj dej distilled pH ntawm 7.0.
- Borax: ntxuav thiab tshuaj tua kab.
- Mis nyuj ntawm Magnesia (Magnesium Hydroxide)
- Ammonia, yeeb ncuab ntawm av.
- Lye: Clog Buster.
Tsis tas li ntawd, 10 cov kua qaub hauv tsev yog dab tsi?
- Carbonic acid (cov dej qab zib)
- Vinegar (acetic acid)
- Roj teeb acid (sulfuric acid)
- Citric acid (txiv qaub)
- Tartaric Acid (tamarind: ua noj)
- Lactic acid (kua mis, yohgurt)
- hydrochloric acid (siv raws li tin soldering flux)
- Shampoo (salicylic acid) thiab lwm yam.
Khaws qhov no hauv kev xav, dab tsi yog tsev neeg cov kua qaub thiab cov hauv paus?
Cov hauv paus hauv tsev Qee cov khoom siv hauv tsev uas muaj cov kua qaub muaj xws li: yogurt, vinegar, kua txiv qaub, citric acid , txiv apples, jelly, pineapples, cranberry sauce, mis nyuj, thiab roj teeb.
5 piv txwv ntawm lub hauv paus yog dab tsi?
Piv txwv ntawm Bases thiab Alkalis
- Sodium hydroxide (NaOH) los yog caustic soda.
- Calcium hydroxide (Ca (OH))2) los yog limewater.
- Ammonium hydroxide (NH4OH) los yog dej ammonia.
- Magnesium hydroxide (Mg (OH))2) los yog mis nyuj ntawm magnesia.
- Muaj ntau yam tshuaj dawb, xab npum, tshuaj txhuam hniav thiab tshuaj ntxuav.
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 qhov txawv ntawm cov kua qaub thiab cov hauv paus ntawm pH nplai?
Distinguishing ntawm acids thiab bases. Keydifference: Acids thiab bases yog ob hom tshuaj corrosive. Txhua yam khoom uas muaj pH tus nqi nruab nrab ntawm 0 txog 7 yog suav tias yog acidic, qhov apH tus nqi ntawm 7 txog 14 yog lub hauv paus. Cov kua qaub yog cov ioniccompounds uas sib cais hauv dej los tsim cov hydrogen ion (H +)
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