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
Mice21 [21]
1 year ago
15

Find the pH of a buffer that consists of 1.3 M sodium phenolate (C₆H₅ONa) and 1.2 M phenol (C₆H₅OH) (pKₐ of phenol = 10.00).

Chemistry
1 answer:
Lostsunrise [7]1 year ago
4 0

The pH of a buffer that consists of 1.3 M sodium phenolate (C₆H₅ONa) and 1.2 M phenol (C₆H₅OH) (pKₐ of phenol = 10.00) is 9.82. As

pH = 10 + log ([1.2]/[1.8]) = 9.82.

<h3>What is sodium phenolate?</h3>

An organic chemical with the formula NaOC6H5 is sodium phenoxide. It is a crystalline white substance. The conjugate base of phenol is its anion, phenoxide, sometimes referred to as phenolate. It serves as a base for several other chemical substances, including aryl ethers. The solid form of sodium phenolate is a white to reddish-tinted solid that resembles crystalline rods. They are used in chemical synthesis and as an antiseptic. It performs a cleansing function. Typically, it dissolves in water. The resultant solutions have pH values higher than 7.0 and contain moderate amounts of hydroxide ions. To neutralize acids, they respond as bases.

To learn more about sodium phenolate, visit:

brainly.com/question/15262075

#SPJ4

You might be interested in
Question # 4 &amp; 5. help CHEMISTRY
laila [671]
1. A thermodynamic quantity that is the difference between the internal energy of a system and the product of itsabsolute temperature and entropy; the capacity of a system to do work, as in an exothermic chemical reaction.<span>2. </span>A thermodynamic quantity that is the difference between the enthalpy and the product of the absolute temperatureand entropy of a system. Also called <span>Gibbs free energy</span>. 
4 0
3 years ago
HELP ASAP!!
Ksju [112]
109/8.56=12.7
50+12.7
V=62.7

Mass= Volume x Density so i divided the mass and density to get the volume. and afterwards i would just add it to the mass to get my final answer

4 0
3 years ago
Read 2 more answers
Calcium’s atomic number is 20. it forms ions with 18 electrons. what is the electrical charge of a calcium ion?
Gnom [1K]
It would be a positive charge because it lost two electrons, if the charge was neutral it would be the same amount of protons and electrons, if the charge was negative the electrons would be 20 instead of 18. So in this case it is positive.
6 0
3 years ago
7.0 mol Mn reacts with 5.0 mol
Elenna [48]

The moles of MnO formed with the reaction of 5 moles of Mn is 3 moles.

<h3>What is a limiting reagent?</h3><h3 />

In a chemical reaction, the reagent that is present in a lesser quantity and governs the rate of the reaction is termed as the limiting reagent.

In the reaction of the formation of MnO, according to the stoichiometric law 2 moles of Mn reacts with 1 moles of Oxygen.

Thus, the moles of oxygen consumed by 7 moles of Mn is:

2 moles Mn = 1 mole O₂

7 moles Mn = 3.5 moles O₂

The available moles of O₂ = 5 mol.

The remaining moles of O₂ = 5-3.5 moles

The remaining moles of O₂ = 1.5 moles

The reaction of 5 moles Mn requires 2.5 moles of O₂, whereas the available moles of oxygen is 1.5 moles. Thus, oxygen serves as the limiting reagent.

The moles of MnO formed with the reaction of 5 moles Mn and 1.5 moles O₂

1 mole O₂ = 2 moles MnO

1.5 moles O₂ = 2 * 1.5 moles MnO

1.5 moles O₂ = 3 moles MnO

Thus, the moles of MnO formed with the reaction of 5 moles of Mn with the available oxygen is 3 moles.

Learn more about stoichiometric law, here:

brainly.com/question/14465605

#SPJ1

6 0
1 year ago
Read 2 more answers
Calculate the pH of mixing 24 mL of 1M acetic acid with 76 mL of 1M sodium acetate. For the purpose of this calculation, assume
FromTheMoon [43]

Answer:

pH = 5.24

Explanation:

Mixture of acetic acid with acetate ion is a buffer (Mixture of a weak acid with its conjugate base). The pH of a buffer can be determined using Henderson-Hasselbalch equation:

pH = pKa + log₁₀ [A⁻] / [HA]

<em>Where pKa is -log Ka = 4.74; [A⁻] is the concentration of conjugate base (Acetate ion) and [HA] is molar concentration of the weak acid.</em>

Concentration of the acetic acid in the 100mL≡0.1L (76mL + 24mL) solution is:

[HA] = 0.024L ₓ (1mol / L) / 0.1L = 0.24M

[A⁻] = 0.076L ₓ (1mol / L) / 0.1L = 0.76M

Replacing in H-H equation:

pH = 4.74 + log₁₀ [0.76M] / [0.24M]

<h3>pH = 5.24</h3>

<em />

7 0
3 years ago
Other questions:
  • An experiment is designed to determine the launch angle that will give a projectile the greatest range (make it go the longest d
    10·1 answer
  • What is the density of a sample of liquid that has a volume of 125 mL and a mass of 200 g?
    9·1 answer
  • Which of the following is an example of a behavioral adaptation
    7·2 answers
  • PROBLEMS
    8·1 answer
  • Which phrases describe space observatories?
    10·1 answer
  • Explain the importance of concentration as it pertains to a solution
    12·1 answer
  • Which is the weight, on earth, of a book with the mass of 1.5 kg?
    10·1 answer
  • Consider the reaction of solid aluminum iodide and potassium metal to form solid potassium iodide and aluminum metal.The balance
    12·1 answer
  • Carbon dioxide and water vapor are variable gases because
    14·1 answer
  • Helppppppppppp it’s due today pls help and thanks
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!