chapitre 2 Flashcards

1
Q

pls un électrolyte est fort, taux de dissociation = faible ou fort

A

fort

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

pk considère t on le CH3COOH comme un électrolyte faible

A

car se dissocie partielemnt
peu d’ions
donc conduit peu électricité

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

concentration molaire,autre nom

A

molarité

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

unité de la concentration molaire

A

mol/L

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

concentration molaire

A

nombe de mol de solué dissous dans 1 L d,eau

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

équation pour calculer molarité

A

C = n/V

C: concentration (mol/L)
n: nb de moles de soluté (mol)
V: volume de la solution (L)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

pH vrai nom

A

potentiel hydrogène

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

pH indication de …

A

la concentration molaire des ions H+ présents dans une solution

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

variation de 1 unité de pH = variation de ______ de la concentration en ions H+

A

facteur 10

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

plus la solution a une concentration molaire en ions H+ élevé, plus elle est ______

A

acide

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

pH = -log[H+]

A

ok

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

[H+] = 10^-pH

A

ok

How well did you know this?
1
Not at all
2
3
4
5
Perfectly