Westonci.ca is the best place to get answers to your questions, provided by a community of experienced and knowledgeable experts. Get detailed and precise answers to your questions from a dedicated community of experts on our Q&A platform. Discover detailed answers to your questions from a wide network of experts on our comprehensive Q&A platform.
Sagot :
Answer:To calculate the pH of a hydrochloric acid (HCl) solution, you need to know that HCl is a strong acid and fully dissociates in water. This means the concentration of hydrogen ions
[
+
]
[H
+
] in the solution is equal to the concentration of HCl.
Explanation:Given the concentration of HCl is
3.5
×
1
0
−
5
M
3.5×10
−5
M:
[
+
]
=
3.5
×
1
0
−
5
M
[H
+
]=3.5×10
−5
M
The pH is calculated using the formula:
pH
=
−
log
[
+
]
pH=−log[H
+
]
Now, let's calculate it:
pH
=
−
log
(
3.5
×
1
0
−
5
)
pH=−log(3.5×10
−5
)
To perform this calculation, we can break it into two parts:
Calculate the logarithm of the base 10 of
3.5
3.5.
Adjust for the exponent
−
5
−5.
First, use the properties of logarithms:
log
(
3.5
×
1
0
−
5
)
=
log
(
3.5
)
+
log
(
1
0
−
5
)
log(3.5×10
−5
)=log(3.5)+log(10
−5
)
Since
log
(
1
0
−
5
)
=
−
5
log(10
−5
)=−5:
log
(
3.5
×
1
0
−
5
)
=
log
(
3.5
)
+
(
−
5
)
log(3.5×10
−5
)=log(3.5)+(−5)
The value of
log
(
3.5
)
log(3.5) is approximately
0.544
0.544:
log
(
3.5
×
1
0
−
5
)
=
0.544
−
5
=
−
4.456
log(3.5×10
−5
)=0.544−5=−4.456
Now, take the negative of this value to find the pH:
pH
=
−
(
−
4.456
)
=
4.456
pH=−(−4.456)=4.456
Therefore, the pH of a
3.5
×
1
0
−
5
M
3.5×10
−5
M HCl solution is approximately
4.456
4.456.
We appreciate your visit. Hopefully, the answers you found were beneficial. Don't hesitate to come back for more information. We appreciate your visit. Our platform is always here to offer accurate and reliable answers. Return anytime. Thank you for visiting Westonci.ca. Stay informed by coming back for more detailed answers.
