1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Softa [21]
2 years ago
6

Question 9

Mathematics
1 answer:
iragen [17]2 years ago
8 0

The pOH of a solution is 5.70. The correct option is C; 2.5 x 10-7 is the hydroxide ion concentration.

<h3>What is the pOH of the solution?</h3>

The pOH of the solution is the negative logarithm of hydroxide ions concentration in a solution. The lower the value of pOH more alkaline will be the solution.

Mathematically written as:

pOH = - Log[OH-]

The sum of ph and pOH is equal to 14.

pH + pOH = 14

The pOH of a solution is 5.70.

pOH = - Log[OH-]

5.70 =  - Log[OH-]

[OH-] = 2.5 x 10-7 is the hydroxide ion concentration.

The solution has a pH value of more than 7 which means that it is base.

Learn more about pOH of a solution;

brainly.com/question/12859706

#SPJ1

You might be interested in
22. One kilometer is approximately 0.62 mile. What fraction represents this length?
bixtya [17]

<u><em>Answer:</em></u>

One kilometer is \frac{31}{50} miles

<u><em>Explanation:</em></u>

<u>To convert a decimal to a fraction:</u>

1- Write the decimal as a fraction whose denominator is 1

2- Multiply both numerator and denominator by multiples of 10 to eliminate the decimal point

3- Simplify the fraction you have

<u>Now, for the given problem:</u>

<u>The given decimal is 0.62, following the above steps:</u>

<u>Step 1: </u>

0.62 = \frac{0.62}{1}

<u>Step 2:</u>

We have two digits after the decimal point, so to eliminate the decimal point, we will multiply the numerator and the denominator by 100

0.62 = \frac{0.62}{1} * \frac{100}{100} = \frac{62}{100}

<u>Step 3:</u>

We can note that, in the fraction obtained from step 2, both the numerator and the denominator are divisible by 2, so we simplify as follows:

\frac{62}{100} = \frac{62/2}{100/2} =\frac{31}{50}

Hope this helps :)

6 0
3 years ago
Please help me i need to complete this by tomorrow
lisov135 [29]

Answer:

Step-by-step explanation: Need to work out your scale factor which is 1.5.

8 * 1.5 = 12

CE = 12

12 * 9 = 108/2 = 59 that is the area of triangle ACE

8 * 6 = 48/2 = 24 that is the area of triangle BCD

ACE - BCD = ABDE

59 - 24 = 35cm^2

8 0
2 years ago
the sale price of a pair of pants is 65% of te regular price of $25. How much so you save by buying the pants on sale?
zysi [14]
$25 times 0.65 = $16.25 & then you do $25 - $16.25 which equals $8.75. So you save $8.75 by buying the pants on sale.
7 0
3 years ago
Read 2 more answers
Rewrite the equation below so that it does not have fractions.
Leviafan [203]

9514 1404 393

Answer:

  8x -24 = 9y

Step-by-step explanation:

We assume your equation is ...

  2/3x -2 = 3/4y

__

Fractions can be eliminated by multiplying the equation by the least common denominator of the fractions.

  LCM(3, 4) = 12

Multiplying the equation by 12 gives you ...

  12(2/3x -2) = 12(3/4y)

  8x -24 = 9y

5 0
3 years ago
Sebastian earned $250 dollars from helping his dad at the store. He has plans to spend one fifth of his earnings. How much money
Akimi4 [234]

Answer:

50

Step-by-step explanation:

you multiply 1/5 and 250/1 to get 250/5 then simplify to get 50

3 0
4 years ago
Read 2 more answers
Other questions:
  • The diagnosis of a square are a.perpendicular
    14·1 answer
  • A semicircle has an area of 76.97 squared km. Find it’s radius
    9·1 answer
  • Line l is parallel to line m. The slope of line l is . What is the slope of line m? 4/9
    15·1 answer
  • Could I please have some help​
    6·1 answer
  • WILL MARK BRAINLEST PLEASE HELP!!!!!
    10·2 answers
  • parallelogram ABCD is reflected over the y axis, followed by a reflection over the x axis, and then rotated 180 degrees about th
    11·1 answer
  • At a competition with 7 runners, medals are awarded for first, second, and
    10·1 answer
  • Evaluate each expression when x=2, y=-5 and z=3 <br> xy-z
    8·1 answer
  • What is the solution to the system of equations graphed below? On a coordinate plane, 2 lines intersect at (2, negative 3). (2,
    15·1 answer
  • Domino's Pizza cuts their Large pizza into 8 equal slices. What is the area of one of the slices if diameter is 16 inches?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!