Video: Gram formula ntawm nh4 2so4 yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ammonium sulfate
| PubChem CID: | 6097028 |
|---|---|
| Kev Nyab Xeeb Tshuaj: | Laboratory Chemical Safety Summary (LCSS) Cov Ntaub Ntawv |
| Molecular Formula : | (NH4) 2YOG4 los yog H8N2O4S |
| Synonyms: | AMMONIUM SULFATE 7783-20-2 Diammonium sulfate Ammoniumsulfate Mascagnite Ntau |
| Molecular Luj: | 132.14 g / mol |
Yog li ntawd, pes tsawg gram formula mass ntawm nh4 2so4?
Teb thiab piav qhia: Lub formula loj ntawm (NH4) 2 ZPO 4 yog 132 atomic pawg units. Muab tus naj npawb ntawm sulfur atoms, peb tsis tuaj yeem txo cov tshuaj qauv mus rau empirical
Tom qab ntawd, lo lus nug yog, pes tsawg grams nyob rau hauv nh4 2so4? 132.13952 g
Ntawm no, puas yog nh4 2so4 ib qho qauv qhia pom?
(NH4) 2SO4
Muaj pes tsawg atoms ntawm H nyob rau hauv ib chav tsev ntawm nh4 2so4?
Ib feem pua ntawm cov khoom
| Element | Cim | # ntawm Atoms |
|---|---|---|
| Hydrogen | H | 8 |
| Nitrogen | N | 2 |
| Oxygen | O | 4 |
| Sulfur | S | 1 |
Pom zoo:
Dab tsi yog cov hlau nplaum uas ua los ntawm qhov kev npaj ntawm electrons yog dab tsi?
Electrons yog teem rau hauv plhaub thiab orbitals nyob rau hauv ib tug atom. Yog hais tias lawv sau lub orbitals kom muaj ntau spin taw tes rau hauv qab (los yog vice versa), txhua atom yuav ua zoo li ib tug me me hlau nplaum. Thaum ib daim ntawm cov hlau tsis muaj hlau nplaum (lossis lwm yam khoom siv ferromagnetic) raug rau sab nraud magnetic teb, ob yam tshwm sim
Dab tsi yog qhov flux los ntawm lub voos xwmfab ntawm sab yog tias tus nqi ntawm Q yog ntawm ib qho ntawm nws lub ces kaum?
Raws li peb paub tias, tag nrho cov flux los ntawm tus nqi q yog q / ε 0 (Gauss txoj cai). Yog hais tias tus nqi yog nyob rau ntawm lub ces kaum ntawm lub voos xwmfab, ib co ntawm cov flux nkag mus rau hauv lub voos xwmfab thiab tawm los ntawm ib co ntawm nws lub ntsej muag. Tab sis qee qhov flux tsis nkag mus rau hauv lub voos xwmfab. Qhov 1/8th no yuav muab faib ua 3 ntu dua
Dab tsi yog txhais los ntawm lub sij hawm dissociation thiab dab tsi yog ib qho piv txwv ntawm cov khoom uas dissociates?
Dissociation, nyob rau hauv chemistry, sib cais ntawm ib yam khoom mus rau hauv atoms los yog ions. Thermal dissociation tshwm sim ntawm qhov kub thiab txias. Piv txwv li, hydrogen molecules (H 2) dissociate rau hauv atoms (H) ntawm kub heev; ntawm 5,000 ° K txog 95% ntawm cov molecules hauv cov qauv ntawm hydrogen yog dissociated rau hauv atoms
Dab tsi yog qhov txawv ntawm instantaneous thiab nruab nrab ceev dab tsi yog qhov piv txwv loj tshaj ntawm kev ceev ceev?
Qhov nruab nrab ceev yog qhov ceev nruab nrab ntawm lub sijhawm. Instantaneous ceev yuav yog qhov ceev txhua qhov muab tam sim ntawd hauv lub sijhawm ntawd, ntsuas nrog lub ntsuas ntsuas lub sijhawm
Dab tsi yog qhov txawv ntawm microevolution thiab macroevolution Dab tsi yog qee qhov piv txwv ntawm txhua tus?
Microevolution vs. Macroevolution. Piv txwv ntawm cov kev hloov microevolutionary no yuav suav nrog kev hloov ntawm hom xim lossis loj. Macroevolution, piv txwv li, yog siv los hais txog kev hloov pauv ntawm cov kab mob uas tseem ceeb txaus uas, dhau sijhawm, cov kab mob tshiab yuav raug suav tias yog hom tshiab nkaus xwb