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
Scilla [17]
4 years ago
15

The equation for the pH of a substance is pH = –log[H+], where H+ is the concentration of hydrogen ions. Which equation models t

he concentration of hydrogen ions (H+) of a solution whose pH is 7.2?
Mathematics
1 answer:
Zanzabum4 years ago
8 0

Answer:  [H+] = 10^-7.2

Step-by-step explanation:

Given that the PH of the solution = 7.2

Using the formula pH = –log[H+]. To get the H+ concentration from the pH, raise both sides by the base of 10. Then we have

10^ -pH = H+. with pH of 7.2,

Thus the answer to this problem is

[H+] = 10^-7.2

You might be interested in
CAN SOMEONE JUST PLEASE ANSWER THIS ASAP FOR BRAINLIEST!!
aksik [14]

Answer:

F= 3x^2

Step-by-step explanation:

1) Multiplying exponents causes them to add, for instance if you were to multiply x^3 * x^4 the final product would be x^7. If you were to divide exponents then they would subtract.

2) Similarly in this problem  you would determine the missing factor by dividing the product from -10x^3

3)  Using the steps above, begin dividing.

-30x^5 / -10x^3

4) -30 divided by -10 is 3 and as mentioned in step number one, you subtract exponents whenever they are divided by each other.  5-3=2

5) Due to all of the steps mentioned above, The answer is 3x^2

6 0
3 years ago
Read 2 more answers
Reuben bought 5CDS that were each the same priceIncluding sales tax, he paid a total of \$81.50. Each CD had a tax of $0.60. wha
Liula [17]

Answer:

The price of each CD before tax is $15.70

Step-by-step explanation:

Given that:

Number of CDs bought by Reuben = 5

Cost of five CDs = $81.50

Sales tax on each CD = $0.60

Sales tax on 5 CDs = 0.60*5 = $3.00

Price of CDs without tax = 81.50 - 3.00 = $78.50

Price of each CD = \frac{Cost\ of\ CDs}{No.\ of\ CDs}

Price of each CD = \frac{78.50}{5}

Price of each CD = $15.70

Hence,

The price of each CD before sales tax is $15.70

7 0
3 years ago
Find the circumference of a circle with a radius of 5 cm. Round your
Verizon [17]
31.4
Hope that helps you!
7 0
3 years ago
I need help asap :(:):)
zubka84 [21]
I think it’s the 3rd one
8 0
4 years ago
Pls look at pic!!!!!!!!!!!!
Alekssandra [29.7K]

Answer:

I don't think the answer is in the options.

8 0
2 years ago
Other questions:
  • at the bank, Brent exchanges $50 in bills for 50 one dollar coins. the total mass of the coins is 405grams.estimate the mass of
    9·2 answers
  • aticengleSidesourcesActivitiesClassify the following triangle. Check all that apply.11.9132eA. equilateralB. obtusen C. rightD.
    13·1 answer
  • For a certain experiment, if we expect to get an apple 8 times in 200 trials, what is the theoretical probability of getting an
    6·1 answer
  • The following quadratic function. find the zeros
    13·1 answer
  • Write an expression for the total cost of movie tickets and popcorn for a group of friends attending a movie, x, if: Movie ticke
    15·1 answer
  • Bridget and Caroline win some money and share it in the ratio 5:3. Bridget gets £65. How
    15·1 answer
  • Alex and Bill share a 24-ounce box of cereal. By the end of the week, Alex has eaten 3 8 of the box, and Bill has eaten 1 4 of t
    10·2 answers
  • X-intercepts of the graph of y = = 3x2 + 2x – 2?
    6·1 answer
  • Write four different equations that have –3 as the solution. (2 points each)
    15·2 answers
  • 2/x-4/y/-5/y+3/x<br><br><br> Pls help
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!