Question: A 92.0 mg sample of a mixture containing a compound Z (FM = 384.63 g/mol, e = 1.63x103 M-1cm-1) was dissolved in a 50.00-ml volumetric

A 92.0 mg sample of a mixture containing a compound Z (FM = 384.63 g/mol, e =

1.63x103 M-1cm-1) was dissolved in a 50.00-ml volumetric flask. A 2.00 mL aliquot was

transferred to a 10.00-mL volumetric flask and diluted to the mark. A portion of the 10-mL sample was placed in a 0.500-cm cuvet and gave an absorbance of 0.636 at 495 nm. A blank solution containing only the solvent had an absorbance of 0.002 at the same wavelength.

a. What is the concentration (mol/L) of the compound in the 10.00-mL flask?

b. What is the concentration (mol/L) of the compound in the 50.00-mL flask?

c. What is the mass (mg) of compound Z in the 92.0 mg sample?

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Chemical Engineering Questions!

A 92.0 mg sample of a mixture containing a compound Z (FM = 384.63 g/mol, e = 1.63x103 M-1cm-1) was dissolved in a 50.00-ml volumetric flask. A 2.00 mL aliquot was transferred to a 10.00-mL...

Fast Food: A fast-food restaurant estimates that the mean sodium content in one of its breakfast sandwiches is no more than 920 milligrams. A random sample of 44 breakfast sandwiches has a mean...

please answer with a little explaination or solution if possible. thx 13. The average number of 2 points milligrams (mg) of cholesterol 10. What is the probability of 5 2 points 2 points 5. If the...

need help, QUESTION 33 Three randomly divided samples of subjects receive ACIPHEX 10 mg, ACIPHEX 20 mg and Placebo and 52 weeks later the percentage of patients in the ENDOSCOPIC REMISSION is...

32. [-/0.12 points) DETAILS 0/4 Submissions Used MY NOTES ASK YOUR TEACHER A 2.50 mg sample of a compound containing carbon, hydrogen, and oxygen underwent combustion producing 5.60 mg of coz and 232...

32. [-10.12 Points DETAILS 0/4 Submissions Used MY NOTES ASK YOUR TEACHER A my sample of a compound containing to hydroge, and we were come mg of CD, and 2.10 m of what is the form of the compound...

A common inhabitant of human intestines is the bacterium Escherichia coir} named after the German pediatrician Theodor Escherich, who identified it in 1885. A cell ofthis bacterium in a...

need help, QUESTION 37 Three randomly divided samples of subjects receive ACIPHEX 10 mg, ACIPHEX 20 mg and Placebo and 52 weeks later the percentage of patients in the ENDOSCOPIC REMISSION is...

A 300 mg sample of a compound containing carbon drogen, and oxygen underwent combustion producing 11.38 mg of co, and 54 mg af H. What is the empical formula of the compound? Type your own the format...

A common inhabitant of human intestines is the bacterium Escherichia coif, named aFter the German pediatrician Theodor Escherich, who identified it in 1885. A cell of this bacterium in a...

In three years, assuming the competitive environment remains unchanged, how many units of Bat will Baldwin be selling in the Nano market segment? A. 639 B. 431 C. 716 D. 561 Nano Statistics Total...

Who is likely to gain more from investing overseas, a resident of the United States or of Mexico? Explain.

The Kahneman - Tversky value function shows that a gain of $ 1 0 0 is valued at less than two gains of $ 5 0 would be offset in one's mind exactly by a loss of $ 1 0 0 would be offset in one's mind...

Can you solve this for intermediate accounting For the year ended December 31, 2023, Sunland Ltd, ceported income before income taxes of \$ \\$ 90,000 \$ In 2023, Sunland Ltd, paid \\( \\$ 69,000...

=+ d. Income per worker in Richland is actually

=+16 times income per worker in Poorland. Can you explain this fact by changing the value of the parameter ? What must it be? Can you think of any way of justifying such a

=+c. If the CobbDouglas parameter takes the conventional value of about 1/3, how much higher should income per worker be in Richland compared to Poorland?