Valoarea pH-ului pentru o soluție acidă este:
pH-ul soluțiilor apoase
Flashcard
•
Chemistry
•
9th Grade
•
Hard
Daniela Petru
Used 1+ times
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10 questions
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1.
FLASHCARD QUESTION
Front
Back
mai mică decât 7
2.
FLASHCARD QUESTION
Front
O soluție are pH = 13. Aceasta este o soluție:
Back
bazică
3.
FLASHCARD QUESTION
Front
O soluție cu pH=2 este acidă.
Back
adevărat
4.
FLASHCARD QUESTION
Front
În soluțiile neutre, concentrația ionilor H+ este egală cu concentrația ionilor OH−.
Back
adevărat
5.
FLASHCARD QUESTION
Front
Cu cât o soluție acidă este mai diluată, cu atât pH-ul ei este mai mare.
Back
adevărat
6.
FLASHCARD QUESTION
Front
Fenolftaleina colorează soluțiile acide în roz.
Back
fals
7.
FLASHCARD QUESTION
Front
Calculează pH-ul unei soluții în care concentrația ionilor de hidrogen [H+] este 10-4 mol/L. Specifică dacă soluția este acidă, neutră sau bazică.
Back
pH=4, acidă
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