If the %T (Transmittence) of a sample is found to be (3.45 x 10^1) %, what is the absorbance of this solution?
Answer: 4.62 x 10^-1
Can I see the work?
Absorbance = 2 – log(%T=2-log(3.45e1)=2- 1.5378191= 0.4621809
Just remember that A = log 1/T = log 1/0.345 = ?
To find the absorbance of a solution, you can use the formula:
A = -log(%T/100)
In this case, the %T of the sample is given as (3.45 x 10^1) %. To calculate the absorbance, follow these steps:
1. Convert the %T value to a decimal by dividing it by 100:
%T = (3.45 x 10^1) / 100 = 0.345
2. Plug the decimal value of %T into the formula:
A = -log(0.345)
3. Use a calculator to find the logarithm and then change the sign to obtain the absorbance:
A ≈ -0.459
Therefore, the absorbance of this solution is approximately -0.459.