Jakie jest pH roztworu NaOH o stężeniu 0,001 mola/dm3
a) 3
b) 1
c) 14
d) 11
pOH=3
14=pH+pOH
pH=14-3=11
odpowiedź d
NaOH----->Na(+) + OH(-)
Cm = [OH⁻]
[OH⁻]=10⁻³
pOH=-log[OH⁻] = 3
pH + pOH = 14
pH = 14 - pOH
pH = 14 - 3
pH = 11
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pOH=3
14=pH+pOH
pH=14-3=11
odpowiedź d
NaOH----->Na(+) + OH(-)
Cm = [OH⁻]
[OH⁻]=10⁻³
pOH=-log[OH⁻] = 3
pH + pOH = 14
pH = 14 - pOH
pH = 14 - 3
pH = 11