Description
Here is the whole instructions for the full manual lab, all I need is to solve the pre- lab and experiment questions.
Unformatted Attachment Preview
Explanation & Answer
Attached.
Experiment#9 prelab Questions
Question 1
a. Beer’s Law.
Intensity of incident light decreases exponentially as the concentration of absorbing
medium increases arithmetically
b. Lambert’s Law.
When a beam of light is allowed to pass through a transparent medium, the rate of
decrease of intensity with the thickness of medium is directly proportional to the intensity
of light.
Question 2
Distilled water: 2.0mL
CoCl2: 3.0mL of 0.150M
𝑀𝑜𝑙𝑒𝑠
Molarity = 𝑉𝑜𝑙𝑢𝑚𝑒
Moles = 0.150 x 3/1000 = 0.00045 moles
New Volume: 2.0mL + 3.0mL = 5mL=0.005L
Molarity = 0.00045 moles/ 0.005L = 0.09M
Co...
Review
Review
24/7 Homework Help
Stuck on a homework question? Our verified tutors can answer all questions, from basic math to advanced rocket science!