URGENT PLZ HELP

The pH of a liquid is a measure of how acidic or basic it is. The concentration of hydrogen ions in a liquid is labeled (H+). Use the formula pH = -log[H] to find the pH level, to the nearest tenth, of a liquid with [H] about 8.1 x 10-7,

a = 6.1
b = 7.9
с = -7.9
d = 7.0

Answers

Answer 1

Answer:

pH = 6.1

Step-by-step explanation:

pH = -log[H]

pH = -log[8.1 x 10^-7]

pH ≈ 6.09

Therefore, option a, 6.1, is closest to this value and is the correct answer.


Related Questions

12 Terrel says 5x = 5x + 0. Johnny says 5x = 5x .0. Which person is correct?
A Johnny
B Terrel
C Both are correct
D Neither are correct

Answers

Answer:

c

5x=5x so when five Cross the=sign

5x-5x=0

state three different between the fundamantal and derived quantities​

Answers

Step-by-step explanation:

Derived=Depends on other quantities, obtained from product or division of fundamental quantities, exist a large number of derives units in the metric system

Fundamental=Independent, can't be expressed in terms of derived units, only seven fundamental units exist in the n metric system.

Landon has a points card for a movie theater. He receives 70 rewards points just for signing up. He earns 5.5 points for each visit to the movie theater. He needs 125 points for a free movie ticket. How many visits must Landon make to earn a free movie ticket?

Answers

Answer:

10 times

Step-by-step explanation:

125-70 bonus points =55 points left.

55 divided by 5.5 per visit = 10 times to get a free movie ticket.

To verify it is correct:

10 visits x 5.5 points each = 55 points total

55 + 70 bonus points = 125 for a free ticket.

Answer:

10

Step-by-step explanation:

Let x= number of visits

5.5x+70=

125

subtract -70 from 70 and 125

5.5x=  55

divide both sides by 5.5

x=10

:)

What is the surface area of a cylinder that is 5 centimeters high and has a diameter of 1.5 centimeters?
7.51 cm2
8.6251 cm2
o
10.5 cm
19.551 cm2

Answers

Answer: SA≈27.1.

The formula is SA=2πrh+2πr2.

The radius is 0.75 since 1.5 divided by 2=0.75.

Plug it in.

1 hundredth+3 tenths equal what

Answers

.Answer:

The answer is .31

Step-by-step explanation:

When there is a “th” at the end of the number it signals that the number is to the right of the decimal.

Tenths are immediately to the right of the decimal, next is hundredths, then thousandths, and so on.

squares and rectangles both have four angles that measure 45° each true or false​

Answers

Answer:

False

Step-by-step explanation:

They both have four angles that measure 90°.

Hope I helped.

No it isnt true. A rectangle or a square has right angles that have a degree of 90 so its actually 90 degrees.

A computer and printer cost $1128. The cost of the computer is three times the cost of the printer. Find the cost of each item. (Also have a great day :D)

Answers

Answer:

Computer 752

Printer 376

Step-by-step explanation:

1128./3=376

1128.-376=752

There were twelve times more children than adults at the matinee performance of the school play. There were 455 people at the play. How many adults and children were there?

Answers

Answer:

35 adults, 420 children

Step-by-step explanation:

1. Set up variables

Let's say children is c and adults is a.

2. Create the equations

c = 12a AND c + a = 455

3. Plug in the variables

Let's take c = 12a and substitute it in for c in the equation "c + a = 455." That would be...

12a + a = 455

13a = 455

a = 35

3. Plug in more variables

Now we have our answer for a, so let's plug it into the other equation. That would be...

c + a = 455

c + 35 = 455

c = 420

Find the area (in square feet) of a trapezoid

Answers

Answer:

Solution Given :

apothegm [a]=9in

perimeter [p]=13.1×5=65.5in

given

A=1/2 aP=1/2×9×65.5=294.75in²

The parent function f(x) = log3x has been transformed by reflecting it over the x-axis, stretching it vertically by a factor of two and shifting it down three units. which function is representative of this transformation?

g(x) = log3(-2x) - 3
g(x) = -2log3(x) - 3
g(x) = 2log3(x) + 3
g(x) = log3(2x) + 3

Answers

Answer:

f(x) =  -2 log3x - 3.

Step-by-step explanation:

f(x) = log3x

Reflecting over x axis makes it  f(x) = f(x) = -log3x

Vertical stretch gives -2 log3x

Finally moving the graph down 3 units gives  -2 log3x - 3.

I need help on this question please and thanks :)

Answers

Answer: a and b

Step-by-step explanation:

Answer:

a, b

Step-by-step explanation:

input, output = ordered pair

m = 3, y-int = 2

I need help with this!



Answers

9514 1404 393

Answer:

  see attached

Step-by-step explanation:

12. The first attachment has the rate of change on each interval. (It is listed at the end of the interval.) It is computed by dividing the difference in length by the corresponding difference in months. The units of rate of change are inches per month.

The baby was growing fastest in the first 3 months.

__

13. The first attachment has the rate of change on each interval. It is computed by dividing the difference in height by the corresponding difference in seconds. The units of rate of change are meters per second. A negative number indicates the elevator is going down.

The second attachment shows a graph of the distance versus time.

_____

I find it convenient to let a spreadsheet do repetitive calculations. I can enter the formula once and copy it where needed. I don't have to worry about the accuracy of the arithmetic, and the result can be formatted to suit the problem requirements. (The basics of most spreadsheet programs can be learned in a few minutes.)

How can I use coordinates to find distances determine perimeter and geometric shapes

Answers

Answer:

Step-by-step explanation:

sketch it out

The area of Mammoth Cave NationalPark in Kentucky is about fifty-two thousand, eight hundred thirty and nineteen hundredths acres. Which shows this number of acres as a base ten numeral?

Answers

Answer:it’s the first one

Step-by-step explanation:

-2, 6, -18, 54: Write an explicate formula for this sequence

Answers

Answer:

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Step-by-step explanation:

Write "yes" or "no" to state whether or not the given side lengths would form a right triangle.
NO LINKS PLSSS
-will mark brainliest :)

Answers

Answer:

"yes" or "no"

Step-by-step explanation:

calcular el número de lados de aquel poligono cuyo número de diagonales.

Answers

el numero de lados es 9

The height of a rectangular prism is half its width. The width of the prism is 1··3o f its length. If the width of the prism is 3 centimeters, what is the volume?

Answers

Answer:

just have fun

Step-by-step explanation:

3) The volume of a cube is 1,000 cu. in. What is the height of the cube? (Remember what is true about a cube!)​

Answers

Answer:

10 inches

Step-by-step explanation:

A police officer estimated the distance from one side of a street to the other to be 14m . The actual distance was 13.4.
Find the absolute error and the percent error of the police officer's estimate. If necessary, round your answers to the nearest tenth.
NO LINKS

Answers

Answer:

Part A. The absolute error is 0.2

Part B. The percent error is 1.45

Step-by-step explanation:

Hope this helps! :)

P.S I can tell that you have experience with the bots who ask you to go press a link. :)

what is the answer
-3x+6(2x+4)=15

Answers

Answer:

x=-1

Step-by-step explanation:

use math a way

consists of a formula a^2+b^2=c^2 which is used to figure out the value of (mostly) the hypotenuse in a right triangle. The a and b are the 2 "non-hypotenuse" sides of the triangle (Opposite and Adjacent).

Answers

Answer:

That is the pythagorean theorem.

In triangle NOP p equals 600 inches angle P equals 96° and angle N equals 64° what is the area of triangle NOP to the nearest 10th of a square inch?

Answers

9514 1404 393

Answer:

  55,637.8 square inches

Step-by-step explanation:

We can find side n using the Law of Sines:

  n/sin(N) = p/sin(P)

  n = p(sin(N)/sin(P)) = 600·sin(64°)/sin(96°)

  n ≈ 542.246913 . . . . inches

The angle O is ...

  O = 180° -N -P = 180° -64° -96° = 20°

Then the area is ...

  A = 1/2·np·sin(O)

  A = (1/2)(542.246913 in)(600 in)·sin(20°) ≈ 55,637.81008 in²

The area of ∆NOP is about 55,637.8 in².

Answer:Area

55637.81

55637.8

Area≈55637.81≈55637.8

Step-by-step explanation:

Coach Nichols asked the track team to run a lap around the track. Determine the distance the team ran. Use 3 for pi.

Answers

Answer:

375

Step-by-step explanation:

A scientist was in a submarine below sea level, studying ocean life. Over the next ten minutes, she descended 75.3 feet. How many feet had she been below sea level, if she was 154.6 feet below sea level after she descended?

Answers

She was initially at a depth of 24.7 feet before she rose

una escuela debe transportar 200 estudiantes

Answers

Answer: a school must transport 200 students

Step-by-step explanation:

help please ! i need it asap & do not put any typa link .

Answers

Answer:

SU = 32 and <SVT = 32

Step-by-step explanation:

math, i am pretty sure about the angle and positive on the diagonal

NEED HELP QUICK PLEASE HELP

Answers

Answer:135

Step-by-step explanation:

[tex]area \: = {135}cm^{2} [/tex]

Step-by-step explanation:

[tex] \: from \: the \: diagram \: we \: have \: 3\: retangles \: \\ [/tex]

area of rectangle = L×B 1 rectangle = 3×2=6

2 rectangular = 4×2 =8

3 rectangle = (13-2) × (7+4)

= 11×11 =121

total area = 6+8+121=135

What is the measure of Arc BA? An explanation would be much appreciated.

Answers

Answer:

m<BA = 180degrees

Step-by-step explanation:

First you must know that measure of <BA is 180 degrees and m<CD = m<BA

Since <CD = 16z - 12, hence;

180 = 16z - 12

16z = 180++12

16z = 192

z = 192/16

z = 12

Get <BA

m<BA = 16z - 12

m<BA = 16(12) - 12

m<BA = 192 - 12

m<BA = 180degrees


is a polygon with 4 sides and 4 angles
a. Triangle
b. Quadrilateral
c. Polygon​

Answers

Answer:

Quadrilateral is a polygon with 4 sides and 4 angles

Answer:

Quadrilateral

=> hope it helps

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