Phosphorus yog cov khoom siv tshuaj nrog lub cim P thiab atomic tooj 15. Cov ntsiab lus phosphorus muaj nyob rau hauv ob hom loj, phosphorus dawb thiab liab phosphorus, tab sis vim nws muaj zog heev, phosphorus yeej tsis pom nyob hauv lub ntiaj teb..
Koj pom cov atomic loj ntawm phosphorus li cas?
Cov atomic loj ntawm phosphorous yog 30.97 amu. Cov molar loj ntawm Phosphorous yog 123.88 g / mol.
1 mol ntawm phosphorus yog dab tsi?
Kev piav qhia: Qhov loj ntawm 1 mole ntawm phosphorus atoms tuaj yeem qhia tau tias yog grams ib mole (g / mol). Qhov no tseem hu ua molar mass. Yog tias peb txheeb xyuas ntawm lub rooj zaum, cov molar loj ntawm phosphorus yog kwv yees 30.97 g / mol.
P4o10 yuav tau txais dab tsi?
P4O10 uas yuav tau txais los ntawm cov tshuaj tiv thaiv ntawm 1.33 gram ntawm P 4 thiab 5.07 ntawm oxygen yog. 2.05 g yog. 3.05g.
Kuv yuav xam molecular mass li cas?
Yuav ua li cas thiaj nrhiav tau cov molar loj ntawm ib lub compound?
- Ua siv cov tshuaj formula los txiav txim seb tus naj npawb ntawm atoms ntawm txhua lub caij hauv cov compound.
- Mua qhov hnyav atomic ntawm txhua lub caij nrog nws cov naj npawb ntawm atoms tam sim no nyob rau hauv lub compound.
- Ntxiv tag nrho thiab muab chav ua grams/mole.
- Example.
