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2 years ago

8

The pH can be calculated using the equation pH = –log(H+), where H+ is the hydronium ion concentration. Find the hydronium ion c

oncentration of a particular soda if the pH level is 2.3.

1 answer:

vitfil [10]2 years ago

3 0

Answer:

Step-by-step explanationp :

ph =lo 4

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Alguien me ayuda pls

Romashka [77]

Answer:

good

Step-by-step explanation:

6 0

3 years ago

Four times the reciprocal of a number equal 2 times the reciprocal of 8

garik1379 [7]

Answer:

Step-by-step explanation:

Let the number be y & reciprocal simply means inverse of the number

4×1/y=2×1/8 solving for y

4/y=2/8; y = 16

5 0

3 years ago

The mean of a particular set of 7 numbers is 4. Six of the numbers in the set are known: 1,2,2,5,7,and 8.

Setler [38]

$\dfrac{1+2+2+5+7+8+x}{7}=4\\
\dfrac{25+x}{7}=4\\
25+x=28\\
\boxed{x=3}
$

8 0

3 years ago

An amusement park charges admission plus a fee for each ride. Admission plus 2 rides costs $10. Admission plus five rides costs

LenaWriter [7]

Answer:

The charge for admission is $6 and the charge for each ride is $2

Step-by-step explanation:

Let

x ----> the charge for admission

y ----> the charge for each ride

we have that

$x+2y=10$ -----> equation A

$x+5y=16$ -----> equation B

Solve the system by elimination

Subtract equation B from equation A

$x+2y=10\\-(x+5y)=-16\\---------\\2y-5y=10-16\\-3y=-6\\y=2$

Find the value of x

substitute the value of y in any equation

$x+2(2)=10$

$x+4=10$

$x=10-4$

$x=6$

therefore

The charge for admission is $6 and the charge for each ride is $2

8 0

3 years ago

Glenn invested $15,000 at 3% interest compounded annually.

Anestetic [448]

15000 * (1+ 0.03)^4

15000 *1.1255 = 16882.63 total after 4 years

16882.63 - 15000 = 1882.63 total interest

Answer is D

3 0

3 years ago