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Consider two different solutions of the same UV-absorbing compound. Upon UV-analysis, Solution B gave an absorbance of 1.0 and Solution A gave an absorbance of 0. 4 at the same wavelength. Solution B is higher in concentration than Solution A by what ratio (or percentage)

Sagot :

okpalawalter8

We have that the Concentration of solution B is 2.5 times more than solution A's concentration.

UV(Ultra violent) rays

Question Parameters:

Upon UV-analysis, Solution B gave an absorbance of 1.0

Solution A gave an absorbance of 0. 4

Generally the equation for the Absorbance    is mathematically given as

A = e*c*L

Therefore

For A solution  

[tex]0.4 = e*[cA]*L[/tex]

For B solution  

[tex]1.0 = e*[cB]*L[/tex]

Hence

[tex]\frac{0.4}{ 1} = \frac{[cA]}{ cB}[/tex]

[cB] = 2.5 [cA]

Therefore

Concentration of solution B is 2.5 times more than solution A's concentration.

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