Cov txheej txheem:
Video: Qhov feem pua ntawm tooj liab thiab bromine hauv CuBr2 yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ib feem pua ntawm cov khoom
| Element | Cim | Pawg Feem pua |
|---|---|---|
| Tooj | Cu | 28.451% |
| Bromine | Br | 71.549% |
Kuj nug, qhov feem pua ntawm tooj liab hauv CuBr2 yog dab tsi?
28.45%
Qhov thib ob, pes tsawg feem pua ntawm CuCl2 yog CU? Ib feem pua ntawm cov khoom
| Element | Cim | Pawg Feem Xyuam |
|---|---|---|
| Chlorine | Cl | 52.737% |
| Tooj | Cu | 47.263% |
Ntxiv mus, dab tsi yog cov tshuaj formula ntawm tooj liab bromide?
CuBr 2
Yuav ua li cas koj thiaj nrhiav tau qhov feem pua muaj pes tsawg leeg?
Ib feem pua
- Nrhiav cov molar loj ntawm tag nrho cov ntsiab nyob rau hauv lub compound nyob rau hauv grams ib mole.
- Nrhiav cov molecular loj ntawm tag nrho cov compound.
- Faib cov khoom molar mass los ntawm tag nrho cov molecular loj.
- Tam sim no koj yuav muaj tus lej ntawm 0 thiab 1. Muab nws los ntawm 100% kom tau txais cov feem pua.
Pom zoo:
Qhov feem ntawm 33 1 3 feem pua yog dab tsi?
Piv txwv tus nqi feem pua ntawm cov zauv feem 25% 0.25 1/4 331/3% 0.333 1/3 50% 0.5 1/2 75% 0.75 3/4
Dab tsi yog qhov txawv ntawm qhov sib txawv ntawm qhov sib txawv thiab qhov sib txawv ntawm qhov ntab?
Integers thiab floats yog ob yam sib txawv ntawm cov ntaub ntawv tus lej. Ib tus lej (feem ntau hu ua anint) yog tus lej tsis muaj tus lej lej. Float isa floating-point number, uas txhais tau hais tias nws yog tus lej uas muaj tus lej lej. Floats siv thaum xav tau ntau dua
Dab tsi yog qhov feem pua ntawm magnesium los ntawm huab hwm coj hauv magnesium oxide?
Cov feem pua ntawm cov ntsiab lus Element Symbol Mass Percent Magnesium Mg 60.304% Oxygen O 39.696%
Qhov feem pua ntawm qhov loj ntawm BR hauv CuBr2 yog dab tsi?
Cov feem pua ntawm cov ntsiab lus Element Symbol Mass Percent Copper Cu 28.451% Bromine Br 71.549%
Dab tsi yog qhov txawv ntawm Biot tooj thiab Nusselt tooj?
Cov lus teb tsis ntev los no. Biot tooj siv thermal conductivity ntawm lub cev (tsis yog kua), whereas Nusselt tooj siv thermal conductivity ntawm cov kua. Qhov sib txawv ntawm Biot thiab Nusselt tus naj npawb yog nyob rau hauv lub ntsiab lus ntawm tshav kub hloov coefficient, uas yog txhais raws li: h = -k (dT / dn) w / (Tw-T0)