2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
a) NaClO muaj pH siab tshaj plaws vim tias lub zog acidic txo qis nrog txo O atoms hauv oxyacids. Txij li NaClO tsawg kawg yog acidic, yog li ntawd, nws muaj pH siab tshaj plaws.
Nws muaj pH siab tshaj plaws?
Tab sis qhov ntsuas tsis muaj qhov txwv, yog li nws muaj peev xwm muaj pH saum toj 14 lossis qis dua. Piv txwv li, concentrated hydrochloric acid tuaj yeem muaj pH ntawm -1, thaum sodium hydroxide tov tuaj yeem muaj pH siab txog 15.
Nws muaj pH siab tshaj plaws hauv cov kua dej?
Vim HOCI yog cov kua qaub qis tshaj plaws ntawm cov oxacids ntawm chlorine, HOCI muaj pH siab tshaj plaws.
pH ntawm NaBr yog dab tsi?
Yog li no, NaBr yog ntsev. Lub dissociation ntawm NaBr yog ib tug aqueous kua tsim tsuas yog sodium ion thiab bromide ion. Lub pH ntawm ntsev yog 7 uas yog nruab nrab. Li no, cov tshuaj aqueous ntawm NaBr yog nruab nrab.
Qhov twg muaj pH qaub ncaug ntau tshaj?
Saliva → 6.8. Saliva's pH ranges ntawm 6.2 txog 7.6, nrog 6.7 yog qhov nruab nrab. Lub pH ntawm lub qhov ncauj yuav tsum tsis txhob poob qis dua 6.3 thaum so. Cov qaub ncaug ua rau pH hauv qhov ncauj ze rau qhov nruab nrab (6.7-7.3).
Pom zoo:
Puas yog thaum muaj qhov xav tau ntau tshaj qhov khoom?
A tsis txaus tshwm sim thaum, ntawm tus nqi muab, qhov xav tau ntau tshaj qhov muab khoom. Scarcity txhais tau hais tias tsis yog txhua tus tuaj yeem noj ntau npaum li nws xav tau. Ib qho zoo tuaj yeem tsis tshua muaj qhov tsis txaus tshwm sim yog tias tus nqi ntawm qhov zoo tau teeb tsa ntawm kev ua lag luam sib npaug.
Dab tsi yog qhov nyiaj ntau tshaj yeej ntawm qhov txuas tsis muaj zog?
Cov nyiaj ntau tshaj yeej ntawm tus thawj NBC version yog $189, 500 ntawm Kev Sib Tw ntawm Losers tshwj xeeb (tseem ua nws tau nyiaj tshaj plaws uas tau yeej ntawm qhov yeeb yam thoob ntiaj teb). Puas muaj leej twg yeej ib lab daus las ntawm qhov txuas tsis muaj zog?
Qhov kev kawm twg muaj ntau tshaj?
Visual learners yog hom kawm ntau tshaj plaws, ua rau 65% ntawm peb cov pejxeem. Cov neeg kawm pom kev cuam tshuam zoo tshaj plaws rau cov ntaub ntawv sau, sau ntawv, kos duab, thiab duab. Qhov kev kawm tsawg tshaj plaws yog dab tsi? Kinesthetic Learners Ntawm no yog hom kawm tsawg tshaj plaws - tsuas yog nyob ib ncig ntawm 5% ntawm cov pej xeem yog tus kawm kinesthetic tiag tiag.
Thaum muaj av qeeg qhov twg yog qhov muaj zog tshaj plaws uas feem ntau xav tau?
Seismic nthwv dej sai dua los ntawm cov pob zeb tawv dua li ntawm cov pob zeb softer thiab sediments xws li av thiab xuab zeb. Tab sis raws li cov nthwv dej dhau los ntawm cov pob zeb nyuaj dua mus rau cov pob zeb softer, lawv qeeb thiab lawv lub zog nce, yog li kev tshee hnyav dua qhov av softer.
Qhov kev tshwm sim hauv lub neej tseem ceeb ntawm kev ntsuas kev ntsuas kev sib raug zoo twg muaj tus lej ntau tshaj?
Qhov kev tshwm sim ntawm qib siab tshaj yog tuag ntawm tus txij nkawm(nrog tus nqi nruab nrab ntawm 100), txheeb ze rau kev sib yuav, nrog tus nqi nruab nrab ntawm 50, thiab, piv txwv, kev tuag ntawm tus phooj ywg ze, uas tau qhab nia 37. Qhov xwm txheej tseem ceeb ntawm lub neej ntawm Kev Hloov Kho Kev Ntsuas Kev Ntsuas Qhov Ntsuas puas muaj cov lej hloov pauv lub neej ntau tshaj?
