1.0 Absorbance 0.8 0.6 CO2+ 0.4 0.2 0.0- 400 500 600 700 800 Wavelength (nm) (c) The spectrophotometer available to the student has a wavelength
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Question

not sure about equipments in b,volumetric flask or beaker,buret or graduated cylinder and why?

for c

gussing it is 700nm but can someone explain it a bit?

thanks!


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1.0
Absorbance
0.8
0.6
CO2+
0.4
0.2
0.0-
400
500 600 700
800
Wavelength (nm)
(c) The spectrophotometer available to the student has a wavelength range of 400 nm to 700 nm. What wavelength should the student use to minimize the interference from the
presence of the Co-*(aq) ions?

ECA9F21A-B3EA-4FBA-AC08-877E30FEAA68.jpeg

Question 8
Directions: Examples and equations may be included in your responses where appropriate. For calculations, clearly show the method used and the steps involved in arriving at your
answers. You must show your work to receive credit for your answer. Pay attention to significant figures.
A student has 100. ml of 0.400 M Cus04(aq) and is asked to make 100. ml of 0.150 M Cus04(aq) for a spectrophotometry experiment. The following laboratory equipment is
available for preparing the solution: centigram balance weighing paper, funnel, 10 mL beaker, 150 mL beaker, 50 mL graduated cylinder, 100 mL volumetric flask, 50 mL buret, and
distilled water.
paration.
(b) Briefly describe the essential steps to most accurately prepare the 0.150 M Cus04(aq) from the 0.400 M Cus04(aq) using the equipment listed above.

Top Answer

Given CuSO 4 solution = 0.400... View the full answer

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