Muaj pes tsawg grams ntawm o2 nyob rau hauv 1.2 moles ntawm o2?
Muaj pes tsawg grams ntawm o2 nyob rau hauv 1.2 moles ntawm o2?

Video: Muaj pes tsawg grams ntawm o2 nyob rau hauv 1.2 moles ntawm o2?

Video: Muaj pes tsawg grams ntawm o2 nyob rau hauv 1.2 moles ntawm o2?
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Koj tuaj yeem saib cov ntsiab lus ntxiv ntawm txhua chav ntsuas: molecular hnyav ntawm O2 lossis grams Lub hauv paus SI rau cov khoom yog mole. 1 mole yog sib npaug rau 1 moles O2, los yog 31,998g:ua . Nco ntsoov tias kev sib hloov yuam kev tuaj yeem tshwm sim, yog li nco ntsoov xyuas qhov ntawd.

Yog li ntawd, dab tsi molar loj yuav tsum tau hloov grams ntawm o2 rau moles ntawm o2?

Cov lus teb yog 31.9988. Peb xav tias koj yog hloov dua siab tshiab nruab nrab gO2 ua thiab mole . Koj tuaj yeem saib cov ntsiab lus ntxiv ntawm txhua qhov ntsuas ntsuas: molecular luj of O2 los yog mol SI base unit rau tus nqi ntawm cov khoom yog tus mole . 1 o2g ua lawv yuav muab 0.031251171918947 mole.

Tsis tas li ntawd, pes tsawg grams ntawm o2 nyob rau hauv 5 moles ntawm oxygen gas? Yog li ntawd, 160 grams yog nyob rau hauv 5.0 moles ntawm cov pa oxygen.

Tom qab ntawd, ib tus tuaj yeem nug, pes tsawg molecules ntawm o2 muaj nyob rau hauv 6.8 mol ntawm o2?

Raws li Avagadro, nyob ntawd 6.022 × 10^23 molecules hauv 1 mole ntawm ib yam compound, tsis hais cov ntsiab lus lossis qhov loj ntawm cov khoom sib xyaw. Yog li hauv 3 moles o2 , nyob ntawd Luas = 3 x 6,022 x 10^23 molecules ntawm O2 Luas = 18,066 × 10^23 molecules ntawm O2.

Muaj pes tsawg moles nyob rau hauv 16g ntawm o2?

16 g yog 0.5 mole ntawm oxygen molecule. peb paub ib molecule ntawm oxygen muaj 2 atom. Yog li hauv 0.5 mole ntawm oxygen molecule, muaj 0.5 * 2 mole ntawm atom ntawm oxygen.

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