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Kemi

Om kemi

QuestionAnswer
Opskriv ligevægtsloven for styrkekonstanten for syren. Ks = [B]*[H3O+]/[S]
Hvad er x-værdien tit i en tritrerkurve, og hvad er y-værdien tit? x-værdien er tit mL y-værdien er tit pH
Hvis en opløsningen bestående af fx HCl og NaOH har en pH værdi på 7, hvad kan man så sige om mængderne af syre og base? Mængderne af syre og base er ækvivalente.
Man har en pufferopløsning og et glas med vand. Hvilken opløsning vil blive surere, hvis en syre tilsættes? Glasset med vand, da en pufferopløsning kan opretholde pH.
En opløsning har styrkeeksponenten -10, og en anden har styrkeeksponenten 3,939820848091384. Hvilken opløsning har den laveste pH? Det har opløsningen med styrkeeksponenten -10, da et lavere tal giver en stærkere syre, med en lave pH-værdi.
-log[H3O+] = pH i hvilken styrke syre? En stærk syre.
Kan et puffersystem opretholde pH for evigt? Hvis nej, hvornår kan den ikke mere? Nej Den kan opretholde pH, indtil puffersystemet er blevet opbrugt.
Opskriv Eddikesyres korresponderende base. CH3COO-
Hvad er en amfolyt? Et stof der både kan agerer som syre og som base.
Under en titrering, er en enkelt dråbe så mest effektiv langt fra ækvivalenspunktet, eller er den mest effektiv tæt på ækvivalenspunktet? Den er mest effektiv tæt på ækvivalenspunktet.
Created by: NC1337
 

 



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