Question

A solution UV transmittance is 35% at 260nm in 1 cm cell pathlength. Calculate the transmittance...

A solution UV transmittance is 35% at 260nm in 1 cm cell pathlength. Calculate the transmittance if you dilute 25 mL of the solution to 75.0 mL and measure it in the cell with 5 cm pathlength?

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
You wish to measure the iron content of the well water on the new property you...
You wish to measure the iron content of the well water on the new property you are about to buy. You prepare a reference standard Fe3 solution with a concentration of 6.11 × 10-4 M. You treat 13.0 mL of this reference with HNO3 and excess KSCN to form a red complex, and dilute the reference to 60.0 mL. The diluted reference is placed in a cell with a 1.00-cm light path. You then take 35.0 mL of the well...
You wish to measure the iron content of the well water on the new property you...
You wish to measure the iron content of the well water on the new property you are about to buy. You prepare a reference standard Fe3 solution with a concentration of 6.75 × 10-4 M. You treat 12.0 mL of this reference with HNO3 and excess KSCN to form a red complex, and dilute the reference to 40.0 mL. The diluted reference is placed in a cell with a 1.00-cm light path. You then take 35.0 mL of the well...
You wish to measure the iron content of the well water on the new property you...
You wish to measure the iron content of the well water on the new property you are about to buy. You prepare a reference standard Fe3 solution with a concentration of 7.39 × 10-4 M. You treat 13.0 mL of this reference with HNO3 and excess KSCN to form a red complex, and dilute the reference to 50.0 mL. The diluted reference is placed in a cell with a 1.00-cm light path. You then take 10.0 mL of the well...
3. A solution of the colored substance, which is known to obey the beer lambert law...
3. A solution of the colored substance, which is known to obey the beer lambert law shows 70% transmittance when measured in a 1 cm cell. Calculate the percent transmittance and absorbance of this solution if measured in (a) a 0.5 cm cell and (b) of a solution of twice the original concentration (in 1cm cell).
1. A standard solution of 100 ppm (100 mg / L) of an organic compound was...
1. A standard solution of 100 ppm (100 mg / L) of an organic compound was analyzed and this has a maximum absorption band at 270 nm. A calibration curve was prepared from which the following data were obtained: Conc. (Ppm) 1 1,5 2 3 4 Absorbance 0.1282   0.1940 0.2615 0.3995 0.5422        If 2 ml of an unknown solution of this compound are diluted to 50 ml, an absorbance of 0.425 is obtained. a. Calculate the concentration...
Calculate the molar concentration of a solution that has a measured absorbance of 0.635 using a...
Calculate the molar concentration of a solution that has a measured absorbance of 0.635 using a 1-cm pathlength cuvette and an extinction coefficient of 46,000.0 M-1cm-1.
The specific rotation of L-alanine in water (at 25°C) is +2.8. A chemist prepared a mixture...
The specific rotation of L-alanine in water (at 25°C) is +2.8. A chemist prepared a mixture of L-alanine and its enantiomer, and 3.50 g of the mixture was dissolved in 10.0 mL of water. This solution was then placed in a sample cell with a pathlength of 10.0 cm and the observed rotation was +0.70. Calculate the % ee of the mixture.
Calculate the molarity of each solution. (1)1.81 mol of LiCl in 32.4 L of solution (2)0.109...
Calculate the molarity of each solution. (1)1.81 mol of LiCl in 32.4 L of solution (2)0.109 mol of LiNO3 in 6.6 L of solution (3) 0.0386 mol of glucose in 84.8 mL of solution To what volume should you dilute 85 mL of a 11.5 M H2SO4 solution to obtain a 1.95 M H2SO4 solution? Express your answer using two significant figures.
For a cavity with gain 110 cm-1 and loss 35 cm-1 calculate the required length of...
For a cavity with gain 110 cm-1 and loss 35 cm-1 calculate the required length of the cavity to reach threshold, assuming total mirror loss of 0.4. What is the restriction on the phase constant?
You need to perform a 1:25 dilution of a certain solution- what glassware will you need...
You need to perform a 1:25 dilution of a certain solution- what glassware will you need to make this dilute solution? (Note: assume you have only- 5.00,10.00,15.00 & 20.00 mL volumetric pipets, and 25.00 & 50.00 mL volumetric flasks. Also, draw a diagram.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT