Video: Muaj pes tsawg grams nyob rau hauv ib mole ntawm HG?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
1 mole yog 1 moles Hg , los yog 200.59 grams.
Tsis tas li ntawd, yuav ua li cas koj hloov los ntawm moles rau grams?
Hloov ua lwm yam Moles rau Grams Formula. Nyob rau hauv thiaj li yuav hloov tus moles ntawm ib yam khoom rau grams , koj yuav tsum tau multiply mole tus nqi ntawm cov khoom los ntawm nws cov molar loj. Feem ntau sau rau daim ntawv thov no xws li: qhov twg, yog qhov molar loj ntawm cov khoom.
Tsis tas li ntawd, pes tsawg grams mercury hnyav? Qhov ntawd tshwm sim vim mercury hnyav cav 13.5 grams rau cubic centimeter. Dej, rau kev sib piv, hnyav 1 grams rau cc. Yog li a 1-liter raj mis dej hnyav 1 kg (2.2 phaus), thaum a 1-liter fwj ntawm mercury hnyav 13.5 kg ib.
Tsis tas li ntawd, ua li cas koj hloov grams rau atoms?
Los xam tus naj npawb ntawm atoms hauv ib qho piv txwv, faib nws qhov hnyav hauv grams los ntawm amu atomic huab hwm coj los ntawm lub rooj sib tham, ces muab cov txiaj ntsig los ntawm Avogadro tus lej: 6.02x 10^23.
Muaj pes tsawg atoms tuaj yeem pom hauv mole ntawm mercury?
Cov mole (los yog mol ) sawv cev rau ib qho ntawm cov khoom. SI def.: tus nqi ntawm cov khoom uas muaj tib tus naj npawb ntawm cov chaw raws li muaj atoms hauv 12 g ntawm carbon-12. Raws nraim 12 g ntawm carbon-12 muaj 6.022 x 1023 atoms . O molecules muaj 6.022 x 1023 molecules.
Pom zoo:
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 ntawm o2 nyob rau hauv 1.2 moles ntawm o2?
Koj tuaj yeem saib cov ntsiab lus ntxiv ntawm txhua chav ntsuas: molecular hnyav ntawm O2 lossis grams Lub hauv paus SI rau tus nqi ntawm cov khoom yog mole. 1 mole yog sib npaug rau 1 moles O2, los yog 31.9988grams. Nco ntsoov tias kev sib hloov yuam kev tuaj yeem tshwm sim, yog li nco ntsoov xyuas qhov ntawd
Muaj pes tsawg atoms ntawm C nyob rau hauv 1 mole ntawm co2?
Avogadro tus lej qhia peb tias muaj 6.022 x 10^23 molecules ntawm CO2 hauv 1 mole ntawm cov pa. Yog li, muaj 6.022 x 10 ^ 23 atoms ntawm carbon thiab 12.044 x 10 ^ 23 atoms ntawm oxygen hauv 1 mole ntawm CO2
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