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
Daniel [21]
3 years ago
9

What is the ph of a 0.135 m aqueous solution of potassium acetate, kch3coo? (ka for ch3cooh = 1.8×10-5)?

Chemistry
1 answer:
Gennadij [26K]3 years ago
6 0
[OH-] = √(Cs×Kw)/Ka
[OH-] = √(0,135×10^-14)/1,8×10^-5
[OH-] = √0,075×10^-9 = √75×10^-12 = 8,66×10^-6

pOH = -log[OH-]
pOH = -log[8,66×10^-6]
pOH ≈ 5,0625

pH + pOH = 14
pH = 14-5,0625
pH = 8,9375

:•)
You might be interested in
What is the basic definition of carbohydrates
ikadub [295]

Carbohydrates are substances that are found in foods such as bread and pasta, which provide the body with heat and energy. Chemically, carbohydrates are made of three kinds of elements namely carbon , hydrogen and oxygen.

Carbohydrates are separated into two main categories, simple carbohydrates and complex carbohydrates.  

Simple carbohydrates are those that contain one or two sugar molecules linked together. Complex carbohydrates are those that contain  three or more sugar molecules linked together. In some cases these chains can contain hundreds of sugar molecules. 

 

8 0
3 years ago
Read 2 more answers
2.50 liter of a gas has a pressure of 165. kPa at 25.0°C. If the pressure increases to 600. kPa and the temperature to 100.0°C,
tiny-mole [99]

Answer:

0.861 L

Explanation:

We are given pressure, volume, and temperature, so let's apply the Combined Gas Law:

(P₁V₁)/T₁ = (P₂V₂)/T₂

Convert the temperatures to degrees Kelvin.

25.0°C -> 298 K, 100.0°C -> 373 K

Plug in the initial conditions on the left, then the final/new on the right, and solve for the unknown:

(165(2.5))/298 = (600(V₂))/373

V₂ = (165(2.5)(373))/(298(600))

V₂ = 0.861 L

7 0
3 years ago
For the following Bronsted acid-base reaction, complete the reaction, identify the acid, base, conjugate
madam [21]

Answer:

algun moderador puede acabar a este otro este me borró respuesta que no debió borrar

7 0
3 years ago
In the following reactions identify which substances are solid (s) or aqueous (aq). 1. Li,SO4( aq ) + MgCl, ( aq ) - 2LICI ( 2LI
IrinaK [193]

Answer:

Ok

Explanation:

4 0
3 years ago
What is the compound name to C5H6?
Masja [62]

What you know about rollin' down in the deep?

When your brain goes numb, you can call that mental freeze

When these people talk too much, put that stuff in slow motion, yeah

I feel like an astronaut in the ocean, ayy

3 0
3 years ago
Read 2 more answers
Other questions:
  • What is the correct way to write 1,550,000,000 in scientific notation
    8·1 answer
  • Iki indicator tests for the presence of which substance? benedict's reagent tests for the presence of which substance?
    9·1 answer
  • For the chemical reaction HCN ( aq ) + KOH ( aq ) ⟶ H 2 O ( l ) + KCN ( aq ) HCN(aq)+KOH(aq)⟶H2O(l)+KCN(aq) write the net ionic
    8·1 answer
  • Use the periodic table to determine the electron configuration for Ca and Pm in noble-gas notation Ca: [Ar]4s2 [Ar]4s1 [Ar]3s2 [
    15·2 answers
  • A substance is tested in a lab. It is found to maintain a unique shape and is a good conductor of electricity. If it is made up
    5·2 answers
  • Which is the largest in size? OA. A. a star O B. a planet O c. an asteroid D. a galaxy E. a supernova E.​
    14·1 answer
  • What would happen to a population if there were a change in the environment where the population lived
    10·1 answer
  • 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
  • Blood has a mass-volume percent of NaCl of 0.9%. What mass (g) of NaCl is present in a liter of blood
    14·1 answer
  • A liquid with high viscosity _____ flow easily and _____ effective in wetting a surface.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!