Video: 2n h2so4 txhais li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Koj xav npaj 2N H2SO4 kua qaub. txhais tau tias uas 1M (molar) acid koj xav npaj.
Tsuas yog, koj yuav ua li cas 2n h2so4?
Kev npaj ntawm H2SO4 - 2 Molar (4Normal, 4N) = 11.1 mL ntawm concentrated H2SO4 rau 100 mLdeionized dej. 1 Molar (2 li qub, 2 N ) = 5.5 mLconcentrated H2SO4 rau 100 mL deionized dej. 0.5 Molar (1Normal, 1N) = 2.7 mL concentrated H2SO4 rau 100 mL deionized dej.
Ib tug kuj yuav nug, ua li cas koj pom qhov normality ntawm h2so4? Siv qhov no qauv : mol ib. qhov hnyav / qhov pib (lossis nfactor), muab rau koj 49.03. Ces, nrhiav normality siv qhov hnyav ntawm solute x 1000 / sib npaug qhov hnyav x ntim ntawm cov tshuaj inml, uas thaum kawg yuav muab rau koj 12.26 grams. Yog li, koj yuav tsum siv 12.26 g ntawm H2SO4 los npaj koj 10 Nconcentrated H2SO4 daws.
Hais txog qhov no, koj ua 1 mole ntawm h2so4 li cas?
A 1 M kev daws ntawm txhua yam yog kev daws teeb meem uas muaj 1 mole ntawm lub compound yaj nyob rau hauv 1 L ofsolvent. Kuv xav tias qhov no yuav yog 1 M H2SO4 nyob rau hauv dej. Yog li, los ua kom cov tshuaj no, tau txais ib 1 L volumetric hwj thiab rau nws ntxiv txog 500 mL dej. Tom qab ntawd, maj mam, ntxiv 98.079 g (los yog 53.3 mL) ntawm sulfuric acid.
Lub ntsiab lus ntawm 0.1 N yog dab tsi?
Qhov normality ntawm kev daws yog gram sib npaug ntawm qhov hnyav ntawm ib liter ntawm kev daws. Piv txwv li, qhov concentration ntawm hydrochloric acid tov tej zaum yuav qhia tau hais tias 0.1n ib HCl. Ib tug gram sib npaug qhov hnyav los yog sib npaug yog ameasure ntawm reactive peev xwm ntawm ib hom tshuaj (ion, molecule, thiab lwm yam).
Pom zoo:
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