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
DiKsa [7]
3 years ago
8

If the ph of hc3h5o2 is 4.2 and the ka 1.34x10^-5, what is the equilibrium concentration

Chemistry
1 answer:
n200080 [17]3 years ago
5 0
<span>CH</span>₃<span>CH</span>₂<span>COOH + H</span>₂<span>O </span>↔ <span> CH</span>₃<span>CH</span>₂<span>COO</span>⁻<span> + H</span>₃<span>O</span>⁺<span> 
</span>
pH = 0.5 pKa + 0.5 pCa
0.5 pCa = pH - 0.5 pKa
              = 4.2 - (0.5 * (-log 1.34 x 10⁻⁵)) = 1.76
pCa = 3.53
Ca = antilog - 3.52 = 3 x 10⁻⁴ 
where Ca is the acid concentration 
You might be interested in
Should plants be watered everyday
disa [49]
It depends on the plant you have. when you buy a new plant it usually has instructions so you would follow. Hope it helps!!!
3 0
3 years ago
Read 2 more answers
An atom has atomic number 5 and mass number 11. How many protons does the atom have? 5 6 10 11
spin [16.1K]

Answer:

6 neutrons. The mass number is the number of protons and neutrons in the nucleus of an atom. The atomic number shows how many protons. Subract the atomic number from the mass number to find the number of neutrons.

Explanation:

6 0
4 years ago
Read 2 more answers
Are the properties of Rubidium more similar to those of cesium or those of strontium?
fenix001 [56]

More similar to Cesium

Explanation:

The properties of Rubidium are more similar to those of cesium compared to strontium.

Elements in the same group on the periodic table have similar chemical properties.

  • Rubidium and Cesium are located in the first group on the periodic table.
  • Other elements in this group are lithium, sodium, potassium and francium
  • Strontium belongs to the second group on the periodic table.
  • The first group have a ns¹ valence shells electronic configuration.
  • They are all referred to as alkali metals

Learn more:

Sodium brainly.com/question/6324347

Periodic table brainly.com/question/1704778

#learnwithBrainly

#learnwithBrainly

5 0
3 years ago
list all of the species that would have a net attraction to the positive charge: CH4, CH2Cl2, H3O+, H2O, C2H2Cl2, CO2, N3-,
Rzqust [24]
A species with a positive charge will have a net attraction to a species with a negative charge. Among the choices, N3- is the only one attracted to a positive charge.
4 0
3 years ago
Is potassium fluoride a covalent bond or ionic bond
Ivahew [28]

It's an ionic bond! Potassium is a cation, or a metal with a positive charge, and fluoride is an anion, or a nonmetal with a negative charge.

A covalent bond is the bond between two nonmetals.

Hope this helped!

7 0
3 years ago
Read 2 more answers
Other questions:
  • Silver sulfate dissolves in water according to the reaction: Ag2SO4(s) ∆ 2 Ag+(aq) + SO42-(aq) Kc = 1.1 * 10-5 at 298 K A 1.5-L
    12·1 answer
  • Determine whether or not the mixing of each of the two solutions indicated below will result in a buffer. part a 75.0 ml of 0.10
    7·1 answer
  • What is the name of the high energy compound that cells use directly to fuel other chemical reactions?
    7·1 answer
  • Which equivalent factor should you use to convert from 4.28 * 10^19 molecules of oxygen to moles of O2
    13·1 answer
  • How is electrical energy used?
    10·2 answers
  • When does a substance have a definite shape?
    12·1 answer
  • Based on your observations of the laboratory assignment(s) that produced gases, can you conclude
    14·1 answer
  • Which element has six energy levels?
    13·2 answers
  • Help me pleaseeeeee​
    15·1 answer
  • Conversation 13kg into gram<br>4 poi ts<br>​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!