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Question No. 16
A 0.1 M solution of compound A shows 50%
transmittance when a cell of 1 cm width is used at 1 nm.
Another 0.1 M solution of compound B gives the optical
density value of 0.1761 using 1cm cell at 11 nm. What wil
be the transmittance of a solution that is simultaneously
0.1 Min A and 0.1 Min B using the same cell and at the
same wave length? [log 1.301; log 1.4771; log 50 = 1.699].​

Answer 1

Answer:

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This discussion on A 0.1 M solution of compound A shows 50% transmittance when a cell of 1 cm width is used at λ1nm. Another 0.1 M solution of compound B gives the optical density value of 0.1761 using 1cm cell at λ1nm. What will be the transmittance of a solution that is simultaneously 0.1 M in A and 0.1 M in B using the same cell and at the same wave length? [log 1.301; log 1.4771; log 50 = 1.699]. (rounded up to two decimal places)Correct answer is between '0.32,0.34'. Can you explain this answer? is done on EduRev Study Group by Chemistry Students. The Questions and Answers of A 0.1 M solution of compound A shows 50% transmittance when a cell of 1 cm width is used at λ1nm. Another 0.1 M solution of compound B gives the optical density value of 0.1761 using 1cm cell at λ1nm. What will be the transmittance of a solution that is simultaneously 0.1 M in A and 0.1 M in B using the same cell and at the same wave length? [log 1.301; log 1.4771; log 50 = 1.699]. (rounded up to two decimal places)Correct answer is between '0.32,0.34'. Can you explain this answer? are solved by group of students and teacher of Chemistry, which is also the largest student community of Chemistry. If the answer is not available please wait for a while and a community member will probably answer this soon. You can study other questions, MCQs, videos and tests for Chemistry on EduRev and even discuss your questions like A 0.1 M solution of compound A shows 50% transmittance when a cell of 1 cm width is used at λ1nm. Another 0.1 M solution of compound B gives the optical density value of 0.1761 using 1cm cell at λ1nm. What will be the transmittance of a solution that is simultaneously 0.1 M in A and 0.1 M in B using the same cell and at the same wave length? [log 1.301; log 1.4771; log 50 = 1.699]. (rounded up to two decimal places)Correct answer is between '0.32,0.34'. Can you explain this answer? over here on EduRev! Apart from being the largest Chemistry community, EduRev has the largest solved Question bank for Chemistry.

Answer 2

Answer:

The transmittance of a solution that is simultaneously 0.1M in A and 0.1M in B will be equal to 33.5% using the same cell and at the same wave length.

Explanation:

We know that the absorbance is given by , A = - log T

or $T = 10^{-A}$                                                            .................(1)

Given, transmittance of solution of compound A, is T₁ = $50\%$ = 0.5

The optical density or absorbance solution of compound B,

A₂ = 0.1761

The transmittance of solution B will be equal to,

$T_2=10^{-A_2}$

Substitute the value of absorbance or optical density in above equation:

$T_2= 10^{-0.1761}$

$T_2 =0.67$

The transmittance (T) of a solution using solution of A and B:-

T = T₁ × T₂

Substitute the value of the transmittances in the  above equation:-

$T = 0.5\times0.67$

$T =0.335$

$T = 33.5\%$

The transmittance of the resulting solution is equal to 33.5%.

The transmittance is multiplicative in nature while absorbance or optical density is additive in nature.

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