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
Mekhanik [1.2K]
2 years ago
11

Determine the acid dissociation constant for a 0.0250 M weak acid solution that has a pH of 2.37 . The equilibrium equation of i

nterest is​
Chemistry
1 answer:
Oksanka [162]2 years ago
3 0

Answer:

For part (a): pHsol=2.22

Explanation:

I will show you how to solve part (a), so that you can use this example to solve part (b) on your own.

So, you're dealing with formic acid, HCOOH, a weak acid that does not dissociate completely in aqueous solution. This means that an equilibrium will be established between the unionized and ionized forms of the acid.

You can use an ICE table and the initial concentration ofthe acid to determine the concentrations of the conjugate base and of the hydronium ions tha are produced when the acid ionizes

HCOOH(aq]+H2O(l]⇌ HCOO−(aq] + H3O+(aq]

I 0.20 0 0

C (−x) (+x) (+x)

E (0.20−x) x x

You need to use the acid's pKa to determine its acid dissociation constant, Ka, which is equal to

You might be interested in
How much time is needed to form most fossils? Help please!
Hunter-Best [27]

Answer:

a minimum of <em>1</em><em>0</em><em>,</em><em>0</em><em>0</em><em>0</em><em> </em>years

3 0
2 years ago
Read 2 more answers
Predict with a reason, what would happen to a packet of potato chips that is packed with air when it is taken to o high mountain
olga2289 [7]

Explanation:

If you bring an unopened bag of potato chips aboard an airplane you'll notice that the bag puffs up as the plane ascends to a higher altitude explain why this happens using the information and terminology you learned in this module

6 0
2 years ago
A 25.00 mL sample of vinegar was titrated with 39.27 mL of 0.4293 M NaOH. Calculate the concentration of acetic acid in the vine
QveST [7]

Answer:

0.6743 M

Explanation:

HC₂H₃O₂ + NaOH → NaC₂H₃O₂ + H₂O

First we <u>calculate how many NaOH moles reacted</u>, using the <em>definition of molarity</em>:

  • Molarity = moles / volume
  • moles = Molarity * volume
  • 0.4293 M * 39.27 mL = 16.86 mmol NaOH

<em>One NaOH moles reacts with one acetic acid mole</em>, so <u>the vinegar sample contains 16.86 mmoles of acetic acid as well</u>.

Finally we <u>calculate the concentration (molarity) of acetic acid</u>:

  • 16.86 mmol HC₂H₃O₂ / 25.00 mL = 0.6743 M
4 0
2 years ago
Cerebrum is made of ____ matter? 4 letter word
katen-ka-za [31]
Gray matter hope this helps!
7 0
3 years ago
Read 2 more answers
What happens when the sun beats up the earth
frozen [14]
Then we all die because the sun would blow up the earth.
7 0
3 years ago
Other questions:
  • Which of the following is a way that some animals bodies adapt to living in extremely cold climates
    6·2 answers
  • How does Elnora feel about her future? A) She takes one day at a time. B) She is apprehensive and anxious. C) She is optimistic
    10·1 answer
  • Water is made of two [Blank] atoms and one [Blank] atom. (please fill in the blanks)​
    7·2 answers
  • Enough energy is added to matter in the liquid state, it will change into a different state.
    5·1 answer
  • Question 044 Which of the following sequences converts 2-methylpropene and sodium acetylide into 3-methylbutanal? 1) HBr; 2) NaC
    13·2 answers
  • How many electrons will a non-metal generally have in its outer shell? 1 - 3 1 - 4 4 - 7 8
    13·2 answers
  • Helpppp me pleaseeee asaaap
    7·1 answer
  • 1. what part (or parts) of the system store potential energy?
    9·1 answer
  • 1. distance = 10 m<br> time = 2 s<br> What is this object's speed?
    9·2 answers
  • How do you combine water and fire? WILL GIVE BRAINLIESTS
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!