Video: Qhov feem pua ntawm qhov loj ntawm BR 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 Xyuam |
|---|---|---|
| Tooj | Cu | 28.451% |
| Bromine | Br | 71.549% |
Raws li txoj cai, qhov feem pua ntawm BR hauv CuBr2 yog dab tsi?
Teb thiab piav qhia: Lub feem pua los ntawm qhov loj ntawm tooj liab nyob rau hauv CuBr 2 yog 28.45%. Tag nrho molar loj ntawm lub compound yog qhov sum ntawm cov molar loj ntawm tooj liab thiab ob bromine atoms.
Ib yam li ntawd, pes tsawg feem pua ntawm Naoh hauv Naoh? Ib feem pua ntawm cov khoom
| Element | Cim | Pawg Feem Xyuam |
|---|---|---|
| Sodium | Na | 57.479% |
| Hydrogen | H | 2.520% |
| Oxygen | O | 40.001% |
Ntawm no, qhov loj ntawm CuBr2 yog dab tsi?
223.37 g / mol
Cov molar loj ntawm c2h3o2 2 yog dab tsi?
Tooj liab (II) acetate
| Cov npe | |
|---|---|
| SMILES [show] | |
| Cov khoom | |
| Tshuaj formula | Cu(CH3COO)2 |
| Molar loj | 181.63 g / mol (tsis muaj dej) 199.65 g / mol (hydrate) |
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
Qhov loj feem pua ntawm cov pa oxygen hauv potassium sulfate yog dab tsi?
Cov feem pua ntawm cov ntsiab lus Element Symbol Mass Percent Oxygen O 36.726% Sulfur S 18.401% Potassium K 44.874%
Qhov loj feem pua ntawm cov dej hauv hydrate CuSO4 5h2o yog dab tsi?
Ib mole ntawm CuSO4•5H2O muaj 5 moles dej (uas sib haum rau 90 grams dej) ua ib feem ntawm nws cov qauv. Yog li, cov khoom CuSO4•5H2O ib txwm muaj 90/250 lossis 36% dej los ntawm qhov hnyav
Qhov feem pua ntawm tooj liab thiab bromine hauv CuBr2 yog dab tsi?
Cov feem pua ntawm cov ntsiab lus Element Symbol Mass Percent Copper Cu 28.451% Bromine Br 71.549%
Qhov loj feem pua ntawm zinc nyob rau hauv zinc II phosphate yog dab tsi?
Cov feem pua ntawm cov ntsiab lus Element Symbol Mass Percent Zinc Zn 50.803% Oxygen O 33.152% Phosphorus P 16.045%