Yuav ua li cas koj thiaj nrhiav tau cov mis empirical nrog feem pua?

2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36

Cov ntawv sau tseg

1. Faib txhua % los ntawm atomic pawg ntawm lub ntsiab.
2. Faib txhua cov lus teb los ntawm qhov tsawg tshaj plaws.
3. Kho cov lej no rau hauv lawv qhov qis tshaj tus lej tag nrho.

Ib yam li ntawd, koj ua li cas xam cov mis empirical?

Kev suav ntawm ib qho Empirical Formula

1. Kauj Ruam 1: Tau qhov loj ntawm txhua lub ntsiab lus hauv grams. Element % = mass in g = m.
2. Kauj Ruam 2: Txiav txim seb tus naj npawb ntawm moles ntawm txhua hom atom tam sim no.
3. Kauj Ruam 3: Faib tus naj npawb ntawm moles ntawm txhua lub caij los ntawm tus lej tsawg tshaj plaws ntawm moles.
4. Kauj Ruam 4: Hloov cov lej rau tag nrho cov lej.

Kuj Paub, qhov piv txwv ntawm cov mis mos molecular yog dab tsi? Cov molecular formula ntawm ib tug compound tej zaum yuav empirical qauv , los yog nws yuav yog ib tug ntau yam ntawm empirical qauv . Rau piv txwv , cov molecular formula ntawm butene, C₄H₈, qhia tau hais tias txhua tus dawb huv uas twb muaj lawm molecule ntawm butene muaj plaub atoms ntawm carbon thiab yim atoms ntawm hydrogen.

Ib tug kuj yuav nug, ua li cas koj nrhiav tau cov mis empirical los ntawm combustion?

Xam cov empirical formula Qhov sib xyaw ntawm cov grams ntawm carbon, hydrogen, thiab oxygen. Xam cov qauv mass rau lub empirical formula thiab faib cov molecular loj los ntawm cov empirical formula mass tau n. Muab txhua tus subscripts nyob rau hauv lub empirical formula los ntawm n kom tau cov molecular qauv.

Yuav ua li cas koj pom cov mis molecular los ntawm cov mis empirical?

Faib cov molar loj ntawm lub compound los ntawm lub empirical formula pawg. Cov txiaj ntsig yuav tsum yog tus lej tag nrho lossis ze rau tag nrho tus lej. Muab tag nrho cov subscripts nyob rau hauv lub empirical formula los ntawm tag nrho cov naj npawb pom nyob rau hauv kauj ruam 2. Qhov tshwm sim yog qhov molecular formula.