Qhov loj ntawm 0.921 moles ntawm sulfur dioxide gas yog dab tsi?
Qhov loj ntawm 0.921 moles ntawm sulfur dioxide gas yog dab tsi?

Video: Qhov loj ntawm 0.921 moles ntawm sulfur dioxide gas yog dab tsi?

Video: Qhov loj ntawm 0.921 moles ntawm sulfur dioxide gas yog dab tsi?
Video: Qhov yuav tau ceev faj txog ntawm tus tshuaj loj loj ntawm no yog li cas tiag 1 Aug 2019 2024, Kaum ib hlis
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SI lub hauv paus unit rau tus nqi ntawm cov khoom yog tus mole . 1 mole yog 1 Moles Sulfur Dioxide 64,0638g,ua.

Tsuas yog li ntawd, qhov loj ntawm ib mole ntawm sulfur dioxide yog dab tsi?

64,066 g / mol

Tsis tas li ntawd, tag nrho qhov hnyav ntawm 0.75 mol ntawm so2 yog dab tsi? Teb: Cov tag nrho qhov hnyav ntawm 0.75 mole ntawm SO2 yog 48g. Nqe lus piav qhia: Los txiav txim qhov tag nrho pawg hauv grams 0.75 moles ntawm SO2 , koj yuav tsum xub txiav txim qhov molar pawg ntawm lub compound.

Raws li, qhov loj ntawm sulfur dioxide tsim tawm yog dab tsi?

Cov molar loj ntawm sulfur 32.1 g / mol, oxygen yog 16.0 g / mol. Yog tias koj saib rov qab ntawm tus qauv (SO2), koj tuaj yeem pom tias muaj ib qho sulfur thiab muaj ob lub pa oxygen. Yog li ntawd, molar loj ntawm sulfur dioxide yog [1 × 32.1 + 2 × 16.0] = 64.1 g/mol.

Qhov loj ntawm 4.00 moles ntawm cov pa oxygen yog dab tsi?

Txij li thaum oxygen muaj atomic pawg ntawm 16 g / mole , cov molar pawg ntawm cov pa oxygen ( O2 ) yog 2 x 16 g / mole Yog ' = 32 g mole . Txij li thaum 1 mole ntawm oxygen yog sib npaug rau 32 g, 4 moles ntawm cov pa oxygen yuav sib npaug rau 4 moj x 32 g/ mole Yog ' = 128 g.

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