Video: Muaj pes tsawg grams ntawm o2 nyob rau hauv 1.2 moles ntawm o2?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
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.
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 moles ntawm oxygen atoms nyob rau hauv ib mole ntawm Al2O3?
(c) 1 molecule ntawm Al2O3 muaj 3 atoms ntawm oxygen. Yog li, 1 mole ntawm Al2O3 muaj
Muaj pes tsawg moles ntawm nitrogen nyob rau hauv 1.2 grams ntawm aspartame?
Cov mis mos molecular rau aspartame yog C14H18N2O5, thiab nws cov molar loj yog li 294 g / mol. 1.2 g / 294 g / mol = 4.08 X 10-3 moles aspartame. Txij li txhua mole ntawm aspartame muaj 2 moles ntawm nitrogen, koj muaj 8.16 X 10-3 moles ntawm N hauv koj 1.2 grams ntawm aspartame
Muaj pes tsawg grams nyob rau hauv ib mole ntawm HG?
1 mole yog sib npaug rau 1 moles Hg, los yog 200.59 grams
Muaj pes tsawg grams ntawm sodium hydroxide nyob rau hauv ib 2m tov?
Lub sij hawm 2M NaOH yog cov ntawv luv rau 2 molarsodium hydroxide tov. Qhov kev qhia no txhais tau hais tias 2moles (los yog 2 x 40 g = 80 g) ntawm NaOH yog yaj dej tsis txaus los ua ib liter ntawm kev daws