All categories

3 years ago

What is the pOH of a solution that has a hydronium ion concentration [H3O+] of 8.26 x 10–5 M?

Mathematics

1 answer:

vovangra [49]3 years ago

6 0

Answer:

Step-by-step explanation: To calculate the pH of a solution, use the equation

−

log

[

]

Since we are given the hydronium ion (

) concentration of the solution, we can plug this value into the formula.

−

log

[

1.00

−

]

The pH of this solution is 4.

Added notes:

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[

]

pOH = -log[

−

]

[

]

−

[

−

]

−

You might be interested in

Calculate the slope of the line given the points (-2, 6) and (0, 4).

soldi70 [24.7K]

The answer is definitely A. Hope this helps!

4 0

3 years ago

Read 2 more answers

. Mrs. Thompson has one-dollar, five-dollar, and ten-dollar bills that total $171. She has the

PolarNik [594]

I don't know because of the denomination at the end

7 0

3 years ago

Also need help with this one!!

julsineya [31]

-1.55555555555555555555555555555555555555

5 0

3 years ago

Give a third degree polynomial that has zeros of 13, 5i, and −5i, and has a value of −680 when x=3. Write the polynomial in stan

Vikki [24]

Answer:

$\dfrac{17x^3-221x^2+425x-5525}{9}\\$

Step-by-step explanation:

hello

we need to find something like, a being real

$a(x-13)(x-5i)(x+5i)$

with a so that

$a(3-13)(3-5i)(3+5i)=-680\\\\a(-10)(3^2-(5i)^2)= -10(9+25)a=-360a=-680\\ a = \dfrac{680}{360}=\dfrac{17*40}{9*40}=\dfrac{17}{9}$

so the third degree polynomial that we are looking for is

$\dfrac{17}{9}(x-13)(x-5i)(x+5i)\\=\dfrac{17}{9}(x-13)(x^2+25)\\\\=\dfrac{17}{9}(x^3+25x-13x^2-13*25)\\\\\\=\dfrac{17}{9}(x^3-13x^2+25x-325)\\\\\\\\=\dfrac{17}{9}x^3-\dfrac{17*13}{9}x^2+\dfrac{17*25}{9}x-\dfrac{17*325}{9}\\=\dfrac{17}{9}x^3-\dfrac{221}{9}x^2+\dfrac{425}{9}x-\dfrac{5525}{9}\\$

hope this helps

3 0

4 years ago

A triangle has two sides with lengths 7 m and 12 m. Which of the following lengths could represent the length of the third side?

hichkok12 [17]

B is the correct answer because in order to form a triangle the sum of each two sides must be greater than the third side

6 0

3 years ago

Read 2 more answers