Video: Yuav ua li cas tshwm sim yog tias koj tov cov kua qaub uas muaj zog sib npaug?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Yuav ua li cas yuav tshwm sim yog tias koj tov ib tug muaj zog acid nrog ib tug sib npaug zos puag ? Koj yuav pom cov tshuaj tiv thaiv tawg. Cov acid yuav rhuav tshem cov puag . Cov base yuav rhuav tshem cov kua qaub.
Cov lus nug tseem yog, yuav ua li cas thaum koj sib tov cov kua qaub thiab lub hauv paus ua ke?
Thaum ib acid thiab base muab tso rau ua ke , lawv teb rau neutralize lub kua qaub thiab puag khoom, ua ib tug ntsev. Lub H(+) cation ntawm lub kua qaub ua ke nrog OH(-) anion ntawm lub puag tsim dej. Lub compound tsim los ntawm cation ntawm lub puag thiab anion ntawm lub kua qaub hu ua ntsev.
Ib yam li ntawd, qhov zoo tshaj pH ntawm ib lub raj tshuaj txhuam hniav yog dab tsi? pH Nyob rau hauv Mineralizers Koj cov enamel pib demineralize thaum raug a pH qib 5.5. Siv tshuaj txhuam hniav nrog fluoride ib txwm yog ib qho kev xaiv zoo rau koj cov enamel noj qab haus huv (thiab kev saib xyuas qhov ncauj feem ntau). Thaum txog 6.6 ntawm lub pH scale, fluoride yog lub hauv paus tsis muaj zog, uas yuav tsis noj tam sim ntawm koj cov enamel.
Ib sab saum toj no, yuav ua li cas thaum koj sib xyaw HCL cov kua qaub muaj zog nrog NaOH lub hauv paus muaj zog)?
Cov tshuaj tiv thaiv neutralization yog thaum ib qho kua qaub thiab a puag react rau tsim ntsev thiab dej thiab nws koom nrog kev sib xyaw ntawm H + ions 0H- los ua dej. Lub neutralization ntawm a muaj zog acid thiab a tsis muaj zog puag muaj PH tsawg dua 7. Thaum NoaH tshwm sim nrog HCL , NaCl thiab H20 yog tsim. HCL + NaOH ==H20+ NaCl.
Yuav ua li cas thaum koj sib tov ob acids?
Tsis muaj cov tshuaj tiv thaiv uas yuav tshwm sim txhua lub sijhawm koj sib tov ob acids , mas kua qaub tuaj yeem cuam tshuam nrog lwm tus kua qaub . Acid -cov tshuaj tiv thaiv muaj peev xwm ntawm qhov muaj zog kua qaub thiab tsis muaj zog kua qaub (uas ua raws li lub hauv paus), tab sis feem ntau cov no tshwm sim nrog qaug zog kua qaub uas tsis nquag hu kua qaub.
Pom zoo:
Yuav daws qhov tsis sib npaug ntawm cov kab sib npaug thiab cov kab sib npaug sib npaug li cas?
Kev daws qhov tsis sib npaug ntawm qhov sib npaug yog zoo ib yam li kev daws cov kab sib npaug. Qhov sib txawv tseem ceeb yog koj tig lub cim tsis sib xws thaum faib lossis muab faib los ntawm tus lej tsis zoo. Graphing linear inequalities muaj ob peb qhov sib txawv ntxiv. Qhov uas yog qhov ntxoov ntxoo muaj xws li qhov tseem ceeb uas qhov kev tsis sib xws ntawm cov kab tawm muaj tseeb
Yuav ua li cas tshwm sim thaum koj sib tov ib tug muaj zog acid nrog ib tug tsis muaj zog puag?
Hom 2: thaum muaj zog acid / base reacts nrog lub hauv paus tsis muaj zog / acid yog hydronium thiab hydroxyl ions tam sim no nyob rau hauv sib npaug amt ces ntsev thiab dej yog tsim thiab lub zog tso tawm uas tsawg tshaj li 57 kj / mole vim lub dissociation ntawm lub tsis muaj zog acid / puag uas feem ntau endothermic
Tam sim ntawd yuav siv dab tsi yog tias koj cov khaub ncaws raug hluav taws lossis yog tias muaj tshuaj lom loj tshwm sim ntawm koj cov khaub ncaws?
Tam sim ntawd yuav siv dab tsi yog tias koj cov khaub ncaws raug hluav taws lossis yog tias muaj tshuaj lom ntau tshwm sim ntawm koj cov khaub ncaws? Koj mus ncaj qha rau da dej kev nyab xeeb thiab sawb ntawm tag nrho koj cov khaub ncaws
Yuav ua li cas yog qhov tshwm sim uas ib tug poj niam dig muag xim uas yuav ib tug txiv neej uas tsis pom kev zoo yuav muaj xim dig muag me nyuam?
Yog tias tus poj niam uas muaj lub zeem muag zoo li no (heterozygous rau qhov muag tsis pom xim) yuav ib tug txiv neej ib txwm muaj (XY), cov xeeb ceem hauv qab no tuaj yeem xav tau hauv F2 tiam: ntawm cov ntxhais, 50% yog ib txwm muaj thiab 50% yog cov neeg nqa khoom rau cov kab mob; ntawm cov tub, 50% yog xim dig muag thiab 50% yog qhov pom kev zoo
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