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hey hi mate
wassup
answer is 4
explanation To calculate the pH of a solution, use the equation
p
H
=
−
log
[
H
3
O
+
]
Since we are given the hydronium ion (
H
3
O
+
) concentration of the solution, we can plug this value into the formula.
p
H
=
−
log
[
1.00
×
10
−
4
M
]
p
H
=
4
The pH of this solution is 4.
Added notes:
p
H
=
p
H
3
O
+
because hydrogen ions attach to water molecules for form hydronium ions.
Some other key things to remember for pH calculations include:
pH + pOH = 14
pH = -log[
H
+
]
pOH = -log[
O
H
−
]
[
H
+
]
=
10
−
p
H
[
O
H
−
]
=
10
−
p
O
H