PbSO4 muaj pes tsawg grams?
PbSO4 muaj pes tsawg grams?

Video: PbSO4 muaj pes tsawg grams?

Video: PbSO4 muaj pes tsawg grams?
Video: PbO2 + Pb + H2SO4 → PbSO4 + H2O [ Método REDOX ] 2024, Lub peb hlis ntuj
Anonim

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%

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