pH scale Flashcards
1
Q
hydrionium
A
H3O+ ion
2
Q
distilled water meaning
A
no ions only H2O molecules
3
Q
how to show pH 7 of [H+] in water
A
[H+]= 1 x 10^-7 M
4
Q
common acids
A
- HCl
- gastric juice
- orange juice
- wine
- coffee
5
Q
Neutral things
A
- milk
-water - blood
- seawater
6
Q
common bases
A
- detergents (cleaners)
- ammonia
- bleach
- NaOH
7
Q
kw
A
1 x 10^-14
8
Q
how many sig figs is pH
A
2
9
Q
how to solve for conc. given pH=9.26
A
pH = -log[H+]
9.26 = -log[H+]
10 ^-9.26 = [H+]
5.5 x 10^-10 = [H+]
10
Q
formulas
A
pH = -log[H+]
pOH = -log[OH-]
pH + pOH =14
kw = [H+][OH-]
