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Video: Koj pom moles ntawm KHP titrated li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
VIDEO
Tsuas yog li ntawd, koj yuav nrhiav tau cov moles ntawm KHP li cas?
Cov moles ntawm cov kua qaub (monoprotic) koj tuaj yeem txiav txim siab los ntawm qhov loj ntawm cov kua qaub thiab nws cov molar loj ( KHP = 204.2212 g/j. mol ). Ua ntej koj mus ntxiv, xam kwv yees qhov concentration ntawm koj cov tshuaj NaOH.
Ib tug kuj tseem nug, pes tsawg moles ntawm NaOH yuav tsum tau hnov mob nrog cov lej ntawm KHP? Kev sib npaug 1 5.00 Nws /L X 0.0150 Luas = 7.50 x 10- 2 moles ntawm NaOH. Txij li thaum sodium hydroxide reacts 1: 1 nrog KHP acid no kuj muaj pes tsawg tus moles ntawm KHP xav tau rau ib tug tiav cov tshuaj tiv thaiv thiab neutralization. Cov grams xav tau tuaj yeem tau los ntawm kev muab cov moles ntawm NaOH los ntawm qhov hnyav molecular ntawm KHP.
Kuj tseem yuav paub yog, pes tsawg moles ntawm KHP tau siv?
Cov lus teb yog 71.080001. Peb xav tias koj hloov pauv ntawm grams KHP thiab mole. Koj tuaj yeem saib cov ntsiab lus ntxiv ntawm txhua chav ntsuas: molecular hnyav ntawm KHP lossis mol Lub hauv paus SI rau cov khoom siv yog mole. 1 grams KHP yog sib npaug rau 0.014068654838651 mol.
Koj pom moles ntawm NaOH li cas?
Txoj Kev 1:
- Xam tus naj npawb ntawm moles ntawm cov kuab tshuaj tam sim no. mol NaOH. = 15.0g NaOH. x. 1 mol NaOH. 40,0 g NPO. mol NaOH.
- Muab xam cov litres ntawm cov tshuaj tam sim no. L os. = 225 mL. x. 1 L. = np
- Faib tus naj npawb ntawm moles ntawm solute los ntawm tus naj npawb ntawm litres ntawm kev daws. M. = 0.375 mol NaOH. = 1.67 M NPO. 0,225l ua.
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