Muaj pes tsawg atoms nyob rau hauv dej molecule?
Muaj pes tsawg atoms nyob rau hauv dej molecule?

Video: Muaj pes tsawg atoms nyob rau hauv dej molecule?

Video: Muaj pes tsawg atoms nyob rau hauv dej molecule?
Video: : tshuav tsawg caum xyoo rau wb nyob : pobtsuas xyooj : nkauj tawm tshiab 2021 2024, Kaum ib hlis
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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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