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
oksian1 [2.3K]
1 year ago
6

Determine the concern traction in [M] of a solution that has an absorbance of 0.420

Chemistry
1 answer:
ZanzabumX [31]1 year ago
8 0

The Concenteration of a solution that has an absorbance of 0.420

is 5.27 μМ

<h3> </h3><h3>What is Absorbance ?</h3>

Absorbance (A), also known as optical density (OD), is the quantity of light absorbed by a solution.

Transmittance is the quantity of light that passes through a solution.

We can measures the absorbance of a sample using a spectrophotometer and the value is A = 0.420.

We can calculate the concentration of the sample using the Beer-Lambert law, which relates the attenuation of light to the properties of the material through which the light is travelling, through the following equation.

A = ∈ x c x d

Where ;

  • A =  Absorbance
  • ∈ =  molar absorptivity of the species (7.96 × 10⁴ M⁻¹ cm⁻¹)
  • c  =  concentration
  • d = optical path length (1.00 cm)

Therefore,

c = A / ∈ x d

  = 0.420 / 7.96 × 10⁴ M⁻¹ cm⁻¹ x 1.00 cm  

  = 5.27 μМ

Learn more about spectrophotometer here ; brainly.com/question/20956841

#SPJ1

You might be interested in
The existence of discrete (quantized) energy levels in an atom may be inferred from
AURORKA [14]
<span>It can be inferred from atomic line spectra. These are certain wavelengths of light that atoms give off when they become excited. The energy levels in an atom can be proven to exist from this phenomenon, and furthermore, they can be measured.</span>
8 0
3 years ago
Suppose that a sample of gas occupies 187 mL
drek231 [11]

Answer:

V2 = 90.7 mL

Explanation:

pressure and volume are inversely proportional, if the pressure is increased, the volume will decrease. In an isothermal process:

p1V1 = p2V2

V2 = p1V1/p2 = (277 torr×187 mL)/571 torr

V2 = 90.7 mL

7 0
3 years ago
When a tip of a plant is cut it doesn't grow well​
aleksandr82 [10.1K]

Explanation:

the tip of a growing plant contains special rapidly diving cells called apical meristem ,these cells are responsible for increase in the length of the plant . if we cut out these cells ,length growth of the plant will be stunned as these cells are not present anyplace else.

8 0
3 years ago
Read 2 more answers
Water samples containing dissolved substances are called _____ solutions. A. solvent B. aqueous C. anhydrous D. elementary
dlinn [17]
The answer is B. hopes it help  you.!!
7 0
3 years ago
Calculate the atomic mass of oxygen if the three common isotopes of oxygen have masses of 15.995 amu (99.759% abundance), 16.995
Valentin [98]

Answer:

16 amu

Explanation:

6 0
3 years ago
Other questions:
  • When two hydrogen atoms bond with one oxygen atom to form water what happens to the electrons?
    7·1 answer
  • How can we explain patterns of behavior among chemical elements?
    15·2 answers
  • MAX POINTS! BRAINLIEST TO BEST ANSWER
    7·2 answers
  • How do you convert this
    9·1 answer
  • Enter your answer in the provided box. For the simple decomposition reaction AB(g) → A(g) + B(g) rate = k[AB]2 and k = 0.20 L/mo
    7·1 answer
  • Aluminum can. Copper sheeting, silver spoon, wood drumstick, brick house, Which objects are flexible?
    6·2 answers
  • In comparing 1 mole of carbon atoms to one mole of magnesium atoms, which statement is TRUE?
    10·1 answer
  • If you want to produce 75,000 bottles of 200 mg vitamin C pills, and there are 100 pills per bottle, how many kg of vitamin C do
    10·1 answer
  • What is equilibrium?? Give examples
    15·1 answer
  • light energy is converted to chemical energy in the form of glucose (c6h12o6) through the process of photosynthesis in plants an
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!