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
Mamont248 [21]
3 years ago
9

If the pH is 9 what is the concentration of hydroxide ion [OH]? (hint: find the pOH first)

Chemistry
2 answers:
UkoKoshka [18]3 years ago
6 0
Realize that pH + pOH = 14
so, 9 + pOH = 14 -> pOH = 5
pOH = -log[OH-]
5 = -log[OH-]
plug it into a calculator and you get 1.0 x 10^-5
alternatively, use [OH-] = 10^-pOH to get the same answer
[OH-] = 1.0 x 10^-5
Ghella [55]3 years ago
4 0
The answer to this is 7
You might be interested in
Atmospheric pressure is the sum of the pressure created by all gases in the
Molodets [167]

Answer:

high less air cause there is no trees and lower is the same

Explanation:

8 0
3 years ago
Place the following elements in order of increasing electronegativity.K Cs PA. K < P < CsB. P < Cs < KC. Cs < K &
skad [1K]

Answer:

C. Cs < K < P

Explanation:

Electronegativity is the basically the tendency of an atom to attract electrons. The pauling scale is used to quantify electronegativity, the most electronegative element; fluorine has a value of 4.0 and francium, the least electronegative element has a value of 0.7

The electronegative values of the following elements are given as;

K = 0.82

Cs =0.79

P = 2.19

Arranging in order of increasing electronegativity, we have;

Cs < K < P. The correct option is;

C. Cs < K < P

5 0
3 years ago
What does a positive H look like on a potential energy diagram?
Iteru [2.4K]

Answer:

D because i did this last week and got it right.

6 0
3 years ago
What causes a substance to be hydrophobic?
WITCHER [35]
The hydrophobic effect is caused by nonpolar molecules clumping together. Large macromolecules can have hydrophobic sections, which will fold the molecule so they can be close to each other, away from water. Many amino acids in proteins are hydrophobic, helping the proteins obtain their complicated shapes. The hydrophobic effect extends to organisms, as many hydrophobic molecules on the surface of an organisms help them regulate the amount of water and nutrients in their systems.
5 0
3 years ago
Describe the difference between a ball-and-stick model and a space-filling model of a compound.
Lisa [10]
A space-filling model shows the relative amount of space each atom takes up. In other words, a space-filling model can show relative sizes of atoms. However, unlike ball-and-stick or structural models, space-filling models do not show bond lengths clearly. Bonds are not really like sticks in a ball-and-stick model.
4 0
3 years ago
Other questions:
  • Please Please Help Me In This Homework!!!!!
    7·1 answer
  • A bag of sand and a bag of feathers can have the same density if they have different:
    12·1 answer
  • A small container is filled with liquid water. What can happen if the container of water is an open system that couldn’t happen
    6·2 answers
  • 15. What is true about concentration of a solution? *
    12·1 answer
  • (Lewis Dot Structures):
    14·1 answer
  • PLEASE PLEAS HELP Which of the following compounds is insoluble in water?
    9·1 answer
  • Highly reactive organic molecules
    14·1 answer
  • Ethyl alcohol evaporates faster then water, why?​
    8·2 answers
  • the presidential inauguration is free to watch with or without paying ror traditional tv service. Why is this important?
    9·2 answers
  • Please Help Will Mark Brainliest!!!
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!