Video: Muaj pes tsawg atoms nyob rau hauv dej molecule?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
peb atoms
Hauv qhov no, pes tsawg oxygen atoms nyob rau hauv ib lub molecule ntawm dej?
Cov tshuaj formula rau dej yog H2O uas txhais tau tias txhua molecule ntawm dej muaj 2 atom ua ntawm hydrogen (H) thiab ib atom ntawm oxygen (O). Ntawm no los txog qhov tseem ceeb. Los ntawm Lub Sij Hawm Lub Sij Hawm, ib tus pom tias ib lub mole ntawm hydrogen atoms hnyav 1 gram thaum ib mole ntawm oxygen atoms hnyav 16 grams.
Qhov thib ob, pes tsawg atoms ntawm hydrogen muaj nyob rau hauv 18g dej? Txij li thaum dej muaj cov tshuaj formula ntawm H2O, nyob ntawd yuav yog 2 moles hydrogen nyob rau hauv txhua lub mole ntawm dej . Hauv ib lub mole ntawm dej , nyob ntawd yuav muaj kwv yees li 6.02⋅1023 dej molecules. Yog li ntawd, nyob ntawd yuav yog tag nrho ntawm 6.02⋅1023⋅2≈1.2⋅1024 hydrogen atoms.
Ua li no, muaj pes tsawg atoms nyob rau hauv ib lub molecule?
2 atom ua
Dab tsi atoms ua h2o?
Dej yog ua los ntawm ob hydrogen ( H ) atoms thiab ib oxygen ( O ) atom. Cov mis rau dej yog H 2 O . Cov hydrogen atoms tau sau orbitals nrog ob lub electrons thiab cov oxygen atom yog puv nrog yim electrons.
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Muaj pes tsawg atoms nyob rau hauv 1 mole ntawm tooj liab?
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Daim Npav Lub Sijhawm Thaum cov kua qaub reacts cov tebchaw twg tsim? Txhais lus ntsev thiab dej Lub sij hawm muaj pes tsawg hydrogen ions muaj nyob rau hauv ib liter dej? txhais tsis muaj; Lawv tag nrho cov hydrated Term Dab tsi yog qhov concentration ntawm hydronium ions nyob rau hauv ib tug nruab nrab tov? Lus Txhais 10^-7 M