Video: PbSO4 muaj pes tsawg grams?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Koj tuaj yeem saib cov ntsiab lus ntxiv ntawm txhua chav ntsuas: molecular hnyav ntawm PbSO4 lossis grams Cov tshuaj no tseem hu ua Lead (II) Sulfate. SI base unit rau tus nqi ntawm cov khoom yog mole. 1 mole yog sib npaug rau 1 moles PbSO4, los yog 303,2626g ib.
Ntxiv mus, tus qauv hnyav ntawm PbSO4 yog dab tsi?
303.26 g / mol
Ib yam li ntawd, koj yuav hloov li cas 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 mass. Feem ntau sau rau daim ntawv thov no xws li: qhov twg, yog qhov molar loj ntawm cov khoom.
Ntawm no, qhov loj ntawm 3.12 moles ntawm Pb so4 2 yog dab tsi?
Tam sim no saib cov molar pawg ntawm txhua lub caij los ntawm lub sij hawm lub sij hawm thiab muab nws los ntawm # ntawm atoms tam sim no. Tam sim no ntxiv cov molar pawg ntawm txhua lub ntsiab lus los ntawm saum toj kom tau cov molar pawg ntawm Pb ( YOG4 ) 2 Qhov hnyav = 207.20 + 64.12 + 128.00 = 399.32 g / mol.
Qhov feem pua ntawm cov hlau lead hauv PbSO4 yog dab tsi?
Ib feem pua ntawm cov khoom
| Element | Cim | Pawg Feem Xyuam |
|---|---|---|
| Coj | Pb | 68.324% |
| Oxygen | O | 21.103% |
| Sulfur | S | 10.573% |
Pom zoo:
Muaj pes tsawg grams hauv CM?
Cov lus teb yog 1. Peb xav tias koj hloov ntawm cubic centimeter thiab gram [dej]. Koj tuaj yeem saib cov ntsiab lus ntxiv ntawm txhua chav ntsuas: cm cubed lossis grams Lub SI muab tau los rau qhov ntim yog qhov cubic meter. 1 cubic meter lawv yuav muab 1000000 cm cubed, los yog 1000000 grams
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 nyob rau hauv ib mole ntawm HG?
1 mole yog sib npaug rau 1 moles Hg, los yog 200.59 grams
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 hom tshuaj lom neeg muaj pes tsawg leeg?
Hauv chaw ua haujlwm muaj ob hom kev phom sij: kev noj qab haus huv thiab kev phom sij ntawm lub cev