Video: Muaj pes tsawg atoms nyob rau hauv calcium dihydrogen phosphate?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov molecule muaj 3 calcium atoms , 2 phosphateatoms ib 8o atoms hauv nws.
Hauv qhov no, cov mis rau calcium dihydrogen phosphate yog dab tsi?
CaH4P2O8
Tom qab ntawd, lo lus nug yog, pes tsawg grams nyob rau hauv ib mole ntawm calcium dihydrogen phosphate? 234.052482 g
Qhov thib ob, calcium dihydrogen phosphate siv rau dab tsi?
Siv raws li tus neeg sawv cev leavening Calcium dihydrogen phosphate yog siv hauv kev lag luam zaub mov raws li tus neeg sawv cev leavening, i.e., ua rau cov khoom ci tuaj. Vim tias nws yog acidic, thaum ua ke nrog ib qho alkaliingredient, feem ntau sodium bicarbonate (baking soda) los yog potassiumbicarbonate, nws reacts tsim carbon dioxide thiab asalt.
Dab tsi yog qhov loj ntawm 1 lab atoms ntawm Fe?
Yuav nrhiav tau hnyav ntawm 1 atom ntawm hlau , koj paub tias 1 atom hlau = 55.845 atomic loj units/ua. Ib amu yog sib npaug rau 1.66 x 10-27 kg, (feem ntau, 1.66 x 10-27g). Teeb tsa koj qhov sib npaug kom cov units tshem tawm. Qhov koj tshuav nrog yog chav tsev ntawm grams rau koj cov tshuaj.
Pom zoo:
Muaj pes tsawg atoms nyob rau hauv dej molecule?
peb atoms Hauv qhov no, pes tsawg oxygen atoms nyob rau hauv ib lub molecule ntawm dej? Cov tshuaj formula rau dej yog H 2 O uas txhais tau tias txhua molecule ntawm dej muaj 2 atom ua ntawm hydrogen (H) thiab ib atom ntawm oxygen (O).
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 atoms nyob rau hauv 1 mole ntawm tooj liab?
Lub tswv yim 2. Kev sib raug zoo ntawm molecular (formula) mass thiab molar mass Page 4 4 • Kom tau ib mole ntawm tooj liab atoms (6.02 x 1023 atoms), hnyav 63.55 g tooj liab. Molar mass (M) ntawm ib yam khoom yog qhov loj ntawm ib qho mole ntawm cov chaw (atoms, molecules, lossis formula units) ntawm cov khoom
Muaj pes tsawg atoms nyob rau hauv ib gram ntawm uranium?
Yeej koj faib Avogadro tas li los ntawm atomic loj ntawm lub caij mus nrhiav tus naj npawb ntawm cov atoms ntawm lub caij hauv ib gram. Yog li Uranium-235 muaj 6.02214179 × 1023 / 235 = 2.5626135 × 1021 atoms ib gram
Muaj pes tsawg oxygen atoms nyob rau hauv chalk?
1 gm mole ntawm CaCO3 muaj 6.022 x 10^23 (lub npe hu ua Avogadro No) molecules. Txhua lub molecule muaj 3 oxygen atoms, yog li koj tuaj yeem xam tus naj npawb ntawm O atoms hauv cov units uas koj tau tshem tawm kom suav nrog