Explain what is the concentration of b in the sample

Assignment Help Chemistry

Reference no: EM13520346

1. a. How many grams of CuSO4•5H2O are needed to prepare 100.0 mL of a 0.15 M CuSO4 solution?

b. In order to make a solution that is 0.030 M in CuSO4, what volume of the above solution should be diluted to 5.00 mL with water?

2. A 0.10 M solution of compound "B" is measured in a 1.00 cm path length cuvette at a wavelength of 500 nm. The percentage of light transmitted through the cell is 38%.

a. What is the absorbance of this sample (A) at 500 nm?

b. Assuming Beer's Law holds, what is the value of e for compound B at 500 nm?

c. A sample of compound B having an unknown concentration is measured to have an absorbance of 0.90 in a 1.00 cm path length cell at 500 nm. What is the concentration of B in this sample, assuming Beer's Law holds?

Reference no: EM13520346

Questions Cloud

Find torque must be applied to the loop to hold it steady : A rectangular coil with 20 windings carries a current of 1.87 mA flowing in the counterclockwise direction. What torque must be applied to the loop to hold it steady

What was the operating profit or loss : What is the sale price at Kitchen Hut and what was the operating profit or loss

Explain titrated with twice its volume of 3mm hcl : Find the PH of the final mixture when a solution containing two weak acids, i.e., 4mM ethylene (Kb1=4.72x10-4) and 2mM ethylene (Kb2=10-4) is titrated with twice its volume of 3mM HCL

Evaluate all aspects of performance : Evaluate all aspects of performance using financial and nonfinancial measures in an integrated fashion.

Explain what is the concentration of b in the sample : A sample of compound B having an unknown concentration is measured to have an absorbance of 0.90 in a 1.00 cm path length cell at 500 nm. What is the concentration of B in this sample, assuming Beer's Law holds

Prepare a condensed cost of goods manufactured : Prepare an income statement and the current assets section of the balance sheet for Case 1. Assume that in Case 1 the other items in the current assets section - Prepare a condensed cost of goods manufactured schedule for Case

Compute the maximum current in the inductor : An inductor has a 56.6-? reactance when connected to a 60.0-Hz source. What is the maximum current in the inductor

Explain the kinetic runs was rinsed with water and not dried : Explain the possible effect of your results of the following experimetnal error or variations (a) the reaction flask you used in the kinetic runs was rinsed with water and not dried

Prepare an income statement through gross profit : Prepare a cost of goods manufactured schedule and prepare an income statement through gross profit.

User Account

All Pages