Sasha wants to compare /8 and /4 on a number line. What is the first step she should take to do this?
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Hello!
<h3><em><u>Answer</u></em></h3>The area of the right triangle is 30 . The perimeter is 40 in.
<h3><em><u>Explanation</u></em></h3>
First, we must find the measure of the hypotenuse of the triangle by using the Pythagorean Theorem.
+
64 + 225 =
√289 =
17 =
Now that we have all the side lengths, we can use the formulas to find the area and perimeter.
<h3>AREA:</h3>A =
A = (15 × 8) ÷ 2
A = 30
<h3>PERIMETER:</h3>P = a + b + c
P = 8 + 15 + 17
P = 40
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 :
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
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