Video: Muaj pes tsawg tus dej molecules nyob rau hauv 4 moles?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Yog li ntawd, 4 moj ntawm dej yuav muaj 4 (6.022x10^23) cov dej molecules.
Kuj paub, muaj pes tsawg tus dej molecules nyob rau hauv 2 moles dej?
1 mole = 6.022×10^23 atoms . 1 dej molecule = 2 Hydrogen atoms + 1 oxygen atom. Yog li ntawd, 1 luj H2O = 1.2044 × 10^24 hydrogen atoms . Yog li ntawd 2 mole H2O yuav muaj 2.4088 × 10^24 hydrogen atoms.
Ib tug kuj yuav nug, pes tsawg molecules nyob rau hauv 1 mole ntawm molecules? Hauv chemistry, a mole yog ib chav tsev kom muaj nuj nqis uas sawv cev rau tus nqi ntawm cov khoom muab. Txij thaum ib mole ntawm ib qho tshuaj compound ib txwm muaj 6.022 x 10^23 molecules , koj tuaj yeem xam tus naj npawb ntawm molecules ntawm tej yam khoom yog tias koj paub nws cov huab hwm coj thiab nws cov tshuaj formula.
Kuj Paub, muaj pes tsawg tus dej molecules nyob rau hauv 6 moles?
Ceev Mole Xyuas Tus lej 6.022 x 1023 yog lub npe hu ua Avogadro's Number. Ib mole ntawm carbon-12 atoms muaj 6.022 x 1023 carbon-12 atoms. Ib lub txiv apples muaj 6.022 x 1023 txiv apples. Ib tug mole ntawm dej muaj 6.022 x 1023 dej molecules.
Muaj pes tsawg grams hauv 4 moles dej?
Nws yog sib npaug rau Avogadro tus lej (NA), uas yog 6.022 x1023. Yog hais tias peb muaj ib tug mole ntawm dej, ces peb paub hais tias nws yuav muaj ib tug loj ntawm 2g ua (rau 2 moles ntawm H atoms) + 16 grams (rau ib mole O atom) = 18g ua.
Pom zoo:
Muaj pes tsawg molecules nyob rau hauv 9 moles ntawm h2s?
9 moles ntawm H2S = 9 (6.022 * 10²³ molecules) = 5.4198 * 1024 molecules. Teb: muaj 5.4198 * 1024 molecules hauv 9.00 moles ntawm H2S
Muaj pes tsawg molecules nyob rau hauv 5.2 moles ntawm h2o?
Ib mole ntawm dej muaj 6.022 x 1023 dej molecules
Muaj pes tsawg tus txiv neej tsim cov ntsiab lus muaj nyob rau hauv lub rooj zaum?
Cov khoom siv hluavtaws yog cov uas muaj atomic tooj 95-118, raws li pom hauv ntshav ntawm lub rooj sib tham nrog: cov 24 lub ntsiab lus no tau tsim thawj zaug thaum xyoo 1944 thiab 2010
Muaj pes tsawg qhov kev zam rau tus qauv electron configurations muaj nyob rau hauv D block?
ob Ntawm no, cov ntsiab lus twg yog kev zam rau Aufbau txoj cai? Piv txwv li, ruthenium, rhodium, nyiaj thiab platinum yog tag nrho kev zam rau Aufbau txoj cai vim yog sau los yog ib nrab puv subshells. Ib sab saum toj no, yog vim li cas electron configuration rau tooj liab 1s22s22p63s23p63d104s1 es tsis txhob 1s22s22p63s23p63d94s2?
Muaj pes tsawg hydrogen ions muaj nyob rau hauv ib liter dej?
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