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
kozerog [31]
3 years ago
7

A concentrated solution of compound A in the same solvent was diluted from an initial volume of 2.00 mL to a fi nal volume of 25

.00 mL and then had an absorbance of 0.733. What is the concentration of A in the concentrated solution?
Chemistry
1 answer:
Andre45 [30]3 years ago
4 0

Answer:

The concentration of A in the concentrated solution is 0.05864

Explanation:

Given

Volume 1 = V1 = 2.00mL

Volume 2 = V2 = 25.00mL

Absorbance 1 = A1 = ?

Absorbance 2 = A2 = 0.733

Beer's law states that the concentration of a chemical solution is directly proportional to its absorbance.

i.e.

V = kA where V = Volume (Concentration)

A = Absorbance

k = Constant

Make k the subject of formula

k = V/A

V1/A1 = V2/A2

Make A1 the subject of the formula

A1 = V1 * A2/V2

Substitute the values of V1, A2 and V2

A1 = 2 * 0.733/25

A1 = 0.05864

So, the concentration of A in the concentrated solution is 0.05864

You might be interested in
How can I differentiate between Ionic compounds, molecular compounds, and acids given only the formula? I need to be able to fin
VikaD [51]
You can differentiate between ionic, covalent and molecular compounds by the fact that ionic compounds contain elements that include both a metal and a nonmetal. Molecular compounds contain both non metals covalently bonded to each other. While acids most often on their chemical formula start with the element of Hydrogen - H.

For Eg - sulphuric acid
H2SO4
hydrochloric acid - HCl.
7 0
3 years ago
Bread dough rising<br> gas formation<br> color change<br> light emission
scoundrel [369]
What are you looking for? bc i can’t see what you are asking
3 0
3 years ago
Read 2 more answers
Select the true statement. ANSWER Unselected Anions are smaller than their neutral parent atoms because there are fewer electron
Olenka [21]

Answer:

Explanation:

.

3 0
3 years ago
Complete each equation with a number that is true.<br>5 * _ =15
natali 33 [55]

The answer is 3. As 5 * 3 = 15.

Is there any other equations I may be able to help you with? :)

5 0
3 years ago
Read 2 more answers
What is molecular formula of Ozone?​
zmey [24]

Answer:

the molecular formula of Ozone is O_3.

7 0
3 years ago
Read 2 more answers
Other questions:
  • Which is a way that paleontologists have contributed to humans' understanding of the history of life?
    5·2 answers
  • To ensure its survival, any species must be able to
    12·2 answers
  • Please get me the right answer
    5·1 answer
  • Which human activity will most likely contribute to ozone layer destruction?
    12·2 answers
  • g Suppose you are titrating an acid of unknown concentration with a standardized base. At the beginning of the titration, you re
    7·1 answer
  • For each part below, use the data below to calculate ΔG at 215 K for each of the following reactions. Then use the data in the c
    9·1 answer
  • Name the element of standard mass.
    5·1 answer
  • In the following compound (HCl) How many electrons are gained and lost by each atom?
    13·1 answer
  • Describe what happens to the particles when a substance:
    10·2 answers
  • I need help with chem. How do I know if this is balanced ?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!