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
salantis [7]
4 years ago
9

Calculate the pH of a solution prepared by mixing: (Show your work for these calculations) pk of acetic acid is 4.75 a. two mole

s of sodium acetate with two moles of acetic acid. b. two moles of sodium acetate with one mole of acetic acid.
Chemistry
1 answer:
kupik [55]4 years ago
7 0

Answer:

Explanation:

To calculate pH you need to use Henderson-Hasselbalch formula:

pH = pka + log₁₀ \frac{[A^-]}{[HA]}

Where HA is the acid concentration and A⁻ is the conjugate base concentration.

The equilibrium of acetic acid is:

CH₃COOH ⇄ CH₃COO⁻ + H⁺ pka: 4,75

Where <em>CH₃COOH </em>is the acid and <em>CH₃COO⁻ </em>is the conjugate base.

Thus, Henderson-Hasselbalch formula for acetic acid equilibrium is:

pH = 4,75 + log₁₀ \frac{[CH_{3}COO^-]}{[CH_{3}COOH]}

a) The pH is:

pH = 4,75 + log₁₀ \frac{[2 mol]}{[2 mol]}

<em>pH = 4,75</em>

<em></em>

b) The pH is:

pH = 4,75 + log₁₀ \frac{[2 mol]}{[1mol]}

<em>pH = 5,05</em>

<em></em>

I hope it helps!

You might be interested in
If 3.5 g H2 react with 18.7 g O2 what is the limiting reactant?
Pachacha [2.7K]
O2 is the limiting reactant 

3 0
4 years ago
Read 2 more answers
Q05 the "atomic number" of an atom is determined by the number of ________ it has.
Alexxx [7]
The atomic number of an atom is determined by the number of protons it has..

It is also the whole number shown on the periodic table 
6 0
4 years ago
Allen is carrying out reactions in a lab. One of the products in all reactions is found to be either a precipitate, a gas, or wa
vampirchik [111]
Here are some examples for those type of reactions.
<span>
Combustion reaction: CH4(g) + 2 O2(g) --> CO2(g) + 2 H2O(l)
</span><span>
Decomposition reaction: CaCO3(s) ---> CaO(s) + CO2(g)

</span><span>Double replacement: AgNO3(aq) + NaCl(aq) ---> AgCl(s) + NaNO3(aq)


</span>One common thing in all is that they are reactions. They have reactants to form new substances called product.
4 0
3 years ago
Read 2 more answers
2. What is the chemical name for GaC1z?
VMariaS [17]

Answer:

aqueous gallium chloride i think

Explanation:

3 0
3 years ago
Bicarbonate concentrate mixers may have a which are replaced on a routine basic.
Sidana [21]

Answer: True the bicarbonate mixture can help save time and few routine.

Explanation:

For the purpose of making dialysate for hemodialysis patient therapies a bicarbonate mixing and delivering systems designed to prepare a liquid sodium bicarbonate formulation comes in handy.

Certain systems like the SDS unit also allow for the transfer and distribution of acid concentrate solutions. We also provide stand-alone acid concentrate delivery systems using a variety of holding tanks and delivery methods. 

A challenge for hemodialysis providers is to properly provide bicarbonate solution in a cost effective manner. Preparation and disinfection can be time-consuming and labor intensive.

Bicarbonate however can corrode certain metals and painted surfaces leaving your preparation area encrusted and grimy.

Furthermore, if not mixed properly, bicarbonate can negatively affect the dialysate solution.

The answer to the above is true the bicarbonate mixture can help save time and few routine.

3 0
3 years ago
Other questions:
  • Which best describes an element?
    6·2 answers
  • Complete the balanced equation for the reaction that occurs when formic acid (hcooh) dissolves in water. please include the stat
    9·1 answer
  • Name at least 3 ways the Periodic Table is organized. *
    12·2 answers
  • Matter is made up of small
    12·2 answers
  • Help me. Dmskdjjddjjcjcfjfjgjghhffufuf
    15·1 answer
  • When one evaporates a pure substance, what would be seen after this evaporation?
    12·1 answer
  • What is the molecular mass of a gas whose density is 1.25 grams per liter at STP?
    14·1 answer
  • 2B + 3H2 2BH3<br> How many moles of BH3 are synthesized when 27.0 moles of H2 completely react?
    14·1 answer
  • Somebody please help me ASAP blank are measured in blank (cm).
    6·1 answer
  • Please help and show work will be picking brainliest
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!