Koj pom qhov hnyav molecular ntawm NaOH li cas?
Koj pom qhov hnyav molecular ntawm NaOH li cas?

Video: Koj pom qhov hnyav molecular ntawm NaOH li cas?

Video: Koj pom qhov hnyav molecular ntawm NaOH li cas?
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Teb thiab piav qhia:

Cov molar loj ntawm sodium hydroxide yog 39,997 g/mol. Txhawm rau txiav txim siab molar loj , multiply atomic pawg los ntawm tus naj npawb ntawm atoms nyob rau hauv lub qauv.

Kuj paub, qhov hnyav molecular ntawm NaOH yog dab tsi?

39,997 g / mol

Tsis tas li ntawd, NaOH puas yog cov kua qaub lossis lub hauv paus? NaOH , los yog sodium hydroxide , yog ib qho compound. A compound yog cais raws li ib qho kua qaub , puag , lus. Tag nrho hauv paus muaj OH- (hydroxide) ions, thaum tag nrho kua qaub muaj H + (hydrogen) ions. Ib qho ntsev yog qhov sib xyaw ua ke uas tsim thaum a puag thiab ib kua qaub ua ke vim lawv neutralize ib leeg.

Ntawm no, dab tsi yog lub mis rau xam qhov hnyav molecular?

xam tag nrho pawg rau txhua lub hauv paus molecule . Multiply lub atomic pawg ntawm txhua lub ntsiab lus los ntawm tus lej ntawm atoms ntawm lub caij: (Atomic Pawg ntawm Element) x(# ntawm atoms ntawm lub caij). Ua qhov no rau txhua lub hauv paus molecule . Hauv peb qhov piv txwv carbon dioxide, lub pawg ntawm ib qho carbon atom yog 12.011 amu.

NaOH muaj pes tsawg grams?

39,9971g ib

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