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
bixtya [17]
3 years ago
11

Which of the following is not a property of a buffer solution? a) It is a mixture of a weak acid and its conjugate base. b) Resi

sts pH changes because it reacts with added acid or base. c) The maximum buffer capacity is at pH = pKa. d) pH is dependent on the solution ionic strength and temperature. e) pH is independent of concentration.
Chemistry
1 answer:
m_a_m_a [10]3 years ago
8 0

Answer:

e) pH is independent of concentration.

Explanation:

a) It is a mixture of a weak acid and its conjugate base. <em>TRUE. </em>A buffer is defined as a mixture of a weak acid and its conjugate base or a weak base and its conjugate acid.

b) Resists pH changes because it reacts with added acid or base. <em>TRUE. </em>Thermodynamically, the reaction of added acid or base is faster with the buffer mixture than with H⁺ or OH⁻ ions of the solutions.

c) The maximum buffer capacity is at pH = pKa. <em>TRUE. </em>The buffer capacity is pka±1. For this, buffer capacity is maximum in pka.

d) pH is dependent on the solution ionic strength and temperature. <em>TRUE.</em> Ionic strength and temperature are factors that influence concentrations of ions in solutions as the H⁺ ion that is the responsible

e) pH is independent of concentration. <em>FALSE. </em>pH in a buffer depends completely of concentrations of the acid and its conjugate base or vice versa.

I hope it helps!

You might be interested in
Consider a 5 molecule system. Assume that the molecules can either be found on the right side or left side of their container.
8090 [49]

Answer:

The correct answer is 6 possible states

Explanation:

8 0
3 years ago
Questioned document examiners prefer to work with copies of a questioned document in order to avoid damage to the original
gladu [14]
I think it is a False
4 0
3 years ago
NEED HELP FAST
Blababa [14]

Answer: 1. Ethylene is a stable molecule with two carbon atoms connected by a double bond. Polyethylene is made by the reaction of multiple ethylene molecules in the presence of a catalyst.

2. The term “plastics” includes materials composed of various elements such as carbon, hydrogen, oxygen, nitrogen, chlorine, and sulfur.

3. Polyethylene (PE) is made by the reaction of multiple ethylene molecules in the presence of catalysts to break the double bond and connect the carbon atoms into a chain . The longer the chain, the higher the molecular weight. Polymers can have molecular weights in the millions.

Explanation:

6 0
3 years ago
How many liters of hydrogen gas is formed from the complete reaction of 15.9 g c? assume that the hydrogen gas is collected at a
ololo11 [35]
C + H2O -> H2 + CO
n(C) = 15.9/12 = 1.325 (mol)
=> n(H2) = 1.325 mol
We have:
PV = nRT
=> V = (nRT)/P
(R = 22.4/273 = 0.082)
V = (1.325 x 0.082 x 360)/1 = 39.114 (L)
7 0
3 years ago
Read 2 more answers
Calculate the energy required to heat 566.0mg of graphite from 5.2°C to 23.2°C. Assume the specific heat capacity of graphite un
maw [93]

Answer:

7.23 J

Explanation:

Step 1: Given data

  • Mass of graphite (m): 566.0 mg
  • Initial temperature: 5.2 °C
  • Final temperature: 23.2 °C
  • Specific heat capacity of graphite (c): 0.710J·g⁻¹K⁻¹

Step 2: Calculate the energy required (Q)

We will use the following expression.

Q = c × m × ΔT

Q = 0.710J·g⁻¹K⁻¹ × 0.5660 g × (23.2°C-5.2°C)

Q = 7.23 J

6 0
3 years ago
Other questions:
  • Dicing potatoes is a physical change. true or false?
    13·2 answers
  • What element has 1 energy level and 2 valence electrons
    10·1 answer
  • Why does a hydrogen atom look like it does
    13·2 answers
  • What is the function of the cell wall in a cell
    10·1 answer
  • What is buffer solution?
    12·1 answer
  • What are 2 diseases caused by coronaviruses?
    6·2 answers
  • Please help me ASAP I’ll mark Brainly thank you
    12·1 answer
  • The density of a sample of gasoline is 0.70 g/cm3. What is the mass of 1 liter of this gasoline?
    11·1 answer
  • Sigh.....................................
    15·2 answers
  • 2. Differentiate the types of tectonic plates.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!