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OleMash [197]
2 years ago
13

(01.02 LC)Simplify negative 4 and 1 over 4 − negative 9 and 1 over 2.?

Mathematics
1 answer:
svlad2 [7]2 years ago
8 0

Answer:

the answer is b

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Butyric acid ( c3h7cooh) is a weak acid . what is the ph of a 0.0250 m solution of this acid. ka = 1.5 x 10-5 (2 decimal places)
Wewaii [24]

The pH of the weak acid is 3.21

Butyric acid is known as a weak acid, we need the concentration of [H+] formula of weak acid which is given by this equation :

[H^{+}]=\sqrt{Ka . Ma}

where [H+] is the concentration of ion H+, Ka is the weak acid ionization constant, and Ma is the acid concentration.

Since we know the concentration of H+, the pH can be calculated by using

pH = -log[H+]

From question above, we know that :

Ma = 0.0250M

Ka = 1.5 x 10¯⁵

By using the equation, we can determine the concentration of [H+]

[H+] = √(Ka . Ma)

[H+] = √(1.5 x 10¯⁵ . 0.0250)

[H+] = 6.12 x 10¯⁴ M

Substituting the value of [H+] to get the pH

pH = -log[H+]

pH = -log(6.12 x 10¯⁴)

pH = 3.21

Hence, the pH of the weak acid c3h7cooh is 3.21

Find more on pH at: brainly.com/question/14466719

#SPJ4

8 0
1 year ago
Please help please help please
Nady [450]

Answer:

566

Step-by-step explanation:

566

6 0
3 years ago
Using the substitution method, answer the question.<br><br> y=4x-3<br> y=-x+7
Nutka1998 [239]
Basically they're both equal
4x-3=x+7
-x. -x
3x-3=7
+3 +3
3x=10

X=10/3
7 0
3 years ago
What is the image point of (-4,2) after a translation left 5 units and down 3<br> units?
damaskus [11]

Answer: (-9,-1)

Step-by-step explanation:

8 0
3 years ago
Please help me with imaginary numbers.
uysha [10]

Answer:

i³².1

i²⁵.i

i⁸⁶.-1

i⁵¹.-i/0

8 0
3 years ago
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