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).
