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
gladu [14]
3 years ago
12

What is the [h3o+] for a solution at 25°c that has poh = 5.640?

Chemistry
1 answer:
jonny [76]3 years ago
5 0

Answer:

= 4.37*10^-9 M

Explanation:

We know that;

pH + pOH = 14

Therefore;

pH = 14 - pOH

Which means; pH = 14 - 5.64

                               = 8.36

But;

pH = -log[H3O+]

Thus;

8.36 = -log[H3O+]

[H3O+] =  10^(-8.36)

        = 4.37*10^-9 M

You might be interested in
I need help with electron affinity chemistry problem. I’m having a tough time.
ExtremeBDS [4]

Answer:

Br Be Ge

Explanation:

Increases in electron affinity

5 0
3 years ago
What are “condensation nuclei”?
Kruka [31]

Answer:

Cloud condensation nuclei or CCNs are small particles typically 0.2 µm, or 1/100 the size of a cloud droplet on which water vapor condenses. Water requires a non-gaseous surface to make the transition from a vapour to a liquid; this process is called condensation.

4 0
3 years ago
Calculate the work done when an ideal gas expands isothermally and reversibly in a piston and cylinder assembly for expansion of
pantera1 [17]

Answer:

W=5743.1077\ J

Explanation:

The expression for the work done is:

W=RT \ln \left( \dfrac{P_1}{P_2} \right)

Where,

W is the amount of work done by the gas

R is Gas constant having value = 8.314 J / K mol

T is the temperature

P₁ is the initial pressure

P₂ is the final pressure

Given that:

T = 300 K

P₁ = 10 bar

P₂ = 1 bar

Applying in the equation as:

W=8.314\times 300 \ln \left( \dfrac{10}{1} \right)

W=300\times \:8.314\ln \left(10\right)

W=2.30258\times \:2494.2

W=5743.1077\ J

5 0
3 years ago
What is the structure of an artery ?
wariber [46]
Well this is a bio question but it goes the tunica interna the tunica media then the tunica externa.
8 0
3 years ago
Use the portion of the periodic table shown below to answer the questions.
Bingel [31]

The two elements that have the same properties as sodium are potassium  and rubidium .

<h3>What is periodic table?</h3>

The periodic table is an arrangement of the elements in order of increasing atomic number.

From the list, the two elements that have the same properties as sodium are potassium  and rubidium .

Proton has an atomic number of 20 and a mass number of 40. The number of electrons is the same as the number of protons. Given that the atomic number is the number of protons present, we have 20 electrons and 20 protons.

Number of neutrons = Mass number  - Number of protons

= 40 - 20 = 20 neutrons

Learn more about periodic table:brainly.com/question/11155928

#SPJ1

4 0
2 years ago
Other questions:
  • This formula equation is unbalanced.
    12·1 answer
  • Which of the following statements is true about Planck’s Law?
    12·1 answer
  • What type of change is baking a cake?
    13·1 answer
  • A long spring is attached to a wall at one end. A pulse is sent down the spring. When the pulse reaches the wall it bounces back
    11·1 answer
  • A student takes a stock solution that is 50 mM (solute formula weight is 120.5 g/mol) and prepares a series of solutions. The fi
    6·1 answer
  • if a solid dissolves into a liquid, what does it mean about the properties of its molecules? Describe what it would look like on
    7·1 answer
  • PLEASE HELP ME ASAP THIS IS DUE IN 10 MINUTES AND I AM STUCK!!
    15·2 answers
  • Which statement describes the number of protons in each atom of an element? (1 point) o The number of protons is given by the ma
    12·1 answer
  • A gymnast whose weight is 5 10 N hangs from the middle of a bar supported by two vertical strands of rope. What is the tension i
    13·1 answer
  • Potassium secretion is linked to:________.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!