Beers Law Lab CuSO4 sol. ranging from 0.00M to 0.40M is prepared to record percentage transmission...

Beers Law

Lab
CuSO4 sol. ranging from 0.00M to 0.40M is prepared to record percentage transmission through spectrometer. Since 0.40M is quite high to obey beers law, but still I got linear graph. Why it's still linear??

Solutions

Expert Solution

Yes, it is true that any solution obeys Beers law within a certain range of the concentration of a particular solution. There are many reasons, below are few: due to electrostatic interactions between molecules in close proximity affects the %Transmission >scattering of light due to particulates in the sample: As concentration increases scattering of light also increases and this will affect on %T. > fluorescence or phosphorescence of the sample: may also affect on %T. >changes in the refractive index at high concentration may affect %T.

Thus the concentration range of a solution which can obey Beers law can be dependent on many factors. 0.40M concentration may fall within the rang which obeys the beers law with that particular instrument with a specific type of glass cuvette you using. If rest of all %T readings are falling on the same line means with given conditions solution is still following Beers law.

queen_honey_blossom answered 1 year ago

Next > < Previous

Related Solutions

Give me two reasons for deviations from Beers’ law that would cause a nonlinear relationship between...

Give me two reasons for deviations from Beers’ law that would cause a nonlinear relationship between absorbance and concentration. Explain why the deviations from linearity occur.?

Lab: Exploration of Avogadro's Law-Determination of Percentage of Sodium Bicarbonate in an Alka-Seltzer Tablet 1) One...

Lab: Exploration of Avogadro's Law-Determination of Percentage of Sodium Bicarbonate in an Alka-Seltzer Tablet 1) One concern with setting up a closed system experiment where gas is evolved during a reaction is the presence of leaks (another concern is that the system will explode if too much gas evolves!). We know that some leaking of pressure occurs because after a maximum pressure is achieved it slowly starts to decrease with time. Will a leak during gas evolution overstate or understate...

In this lab you will take data from a video and attempt to verify the Law...

In this lab you will take data from a video and attempt to verify the Law of Conservation of Momentum. Additionally, you will take into account the uncertainty of (most of) the measurements. There is no such thing as a perfect measurement. All measurements have some amount of error. Some of that error comes from mistakes made while taking the measurement; by slightly misusing the equipment (for example, not perfectly lining up a ruler) or by misreading the equipment. As...

Ok this is a exerpt from my lab. I prepared all my solutions correctly, and am...

Ok this is a exerpt from my lab. I prepared all my solutions correctly, and am getting ready to use the spectrophotometre. But is is asking for precise concentrations, and i am confused as two how to use the dilution formula M1V1=M2V2 to find them. Any advice would be appreciated. You should now have six “dilute” solutions containing known concentrations of tetraaquasalicylatoiron(III) ion in addition to the stock solution. The concentrations of these dilute solutions are approximately (assumes stock solution...

Question about SN1 and SN2 reactions. In my lab we prepared 1-bromobutane from 1-butanol (SN2) and...

Question about SN1 and SN2 reactions. In my lab we prepared 1-bromobutane from 1-butanol (SN2) and 2-chloro-2-methylbutane from 2-methyl-2-butanol (SN1). I don't undetstand the following questions: 1. Why did we heat the SN2 reaction but not the SN1 reaction? 2. What was the purpose of performing a simple distillation on both reactions? What were you isolating your products from? 3. What was the purpose of washing both of oyur reaction mixtures with brine (saturated sodium chloride)?

Record your lab data regarding photogate positions and times in the table below, converting the units as needed. Order the entries from shortest distance to longest.

Record your lab data regarding photogate positions and times in the table below, converting the units as needed. Order the entries from shortest distance to longest. # Position (m) Time (s) 1 40 cm 0.05 s 2 50 cm 0.05 s 3 60 cm 0.15 s 4 80 cm 0.25 s 5 90 cm 0.30 s 6 100 cm 0.35 s 7 110 cm 0.35 s 8 120 cm 0.40 s 9 130 cm 0.40 s 10 140 cm...

Subjects