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
kozerog [31]
3 years ago
8

A solution with pH of 9 has [OH-] concentration of

Chemistry
1 answer:
Drupady [299]3 years ago
7 0
PH = -log([H+])
[H+] = 10^(-pH)

[H+] = 10^(-9)

[H+][OH-] = Kw
Kw = 1.0*10^-14 at 25 degrees celsius.

[OH-] = Kw/[H+] = (1.0*10^-14)/(1*10^-9) = 1.0*10^-5

The concentration of OH- ions is 1.0*10^-5 M.
You might be interested in
How many parts does CsF ( Cesium Fluoride ) have?
san4es73 [151]
Good luck on this one brp
7 0
3 years ago
Which of these actions would increase heat transfer between two objects?
klasskru [66]

Heat transfer is the phenomenon that occurs when the two objects are in the vicinity of each other and by increasing the area of their contact. Thus, option B is correct.

<h3>What is heat transfer?</h3>

Heat transfer is a process that flows the heat from one system to another, and is because of the difference in the temperature of the two objects that are part of the system.

The methods like conduction, convection, and radiation transfer the heat from the surface area to the other object. The heat gets transferred from the area of high to the low temperature.

Therefore, option B. by increasing the surface area the heat transfer increases.

Learn more about heat transfer here:

brainly.com/question/17823456

#SPJ1

5 0
2 years ago
Help me for brainlest pleaes
Tresset [83]
First option.

The male tails are more attractive because of their long feathers , meanwhile the female tails are shorter than expected!
6 0
3 years ago
Name four ways that bacteria are helpful to people
vesna_86 [32]
<span>gives you dairy products 
helps fight disease 
helps digest food 
They are used in the manufacturing of antibiotics.</span>
8 0
4 years ago
What the 4 main parts to a flower<br> science i cant find it in the supject
kondaur [170]

stem, roots, leaves and flower

I hope it helps

5 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following is necessary to increase the rate of a reaction?
    15·1 answer
  • If the concentration of a reactant in a mixture is doubled and the reaction rate increases by a factor of eight, the reaction or
    14·1 answer
  • What are atoms comprised of?
    5·1 answer
  • Determine the boiling point of a solution that contains 70.6 g of naphthalene (C10H8, molar mass = 128.16 g/mol) dissolved in 72
    9·1 answer
  • When children are young and go to the doctor, the doctor will give them booster shots. This re-exposes the children to a dead po
    5·2 answers
  • Data for CH3COOH(l) + C2H5OH(l) CH3COOC2H5(l) + H2O(l) balance were obtained at 100. The initial concentrations of the reagents
    7·1 answer
  • A weak base. B. has a K. of 4.46 x 10-10 A solution with an unknown initial concentration is tested, and found to have a pH of 8
    9·1 answer
  • Write the chemical equation for the reaction in which silver carbonate is formed
    11·1 answer
  • Which statement correctly describes a reaction in dynamic equilibrium?
    5·1 answer
  • Name the alkanes shown
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!