Answer:
pH= 0.8
pOH= 13.2
Explanation:
Number of moles = mass/molar mass
mass= 15 g
molar mass =36.5 g/mol
Number of moles = 15 g/36.5 g/mol = 0.4 moles
From;
n= CV
Where;
C= concentration of solution
V= volume of solution
n= Number of moles
C = n/V
n= 0.4 moles
V= 2500mL or 2.5 L
C= 0.4/2.5
C= 0.16 M
Hence [H^+] = 0.16 M
pH= - log [H^+]
pH= 0.8
pOH= 14 - pH
pOH= 14 - 0.8
pOH= 13.2
