Q1 5. According to the experiment, what is the concentrationof an unknown solution if A = 0.242?8=10.197 Mb. 0.240 Mc. 0.258 Md. 0.289 M6. Adding 50 mL of pure water to a 10 mL sample ofsolute would have what effect on the absorbance?a. the absorbance would decrease as the solute is dilutedb. absorbance would remain unchanged because theamount of solute remains unchangedc. the absorbance would remain unchanged because thesolution's density remains unchangedd. the absorbance would increase as volume increases7. Which of the following would increase the accuracyand precision of measuring the solute concentration?a. running the experiment using different wavelengthsb. using a bigger cuvette in order to increase pathlengthc. adding more standard concentrations to the curved. running multiple trials of each standard concentration Absorbance0.60.50.40.30.20.10.00Molarity (M)0.10.20.30.40.50.60.70.10.2Absorbance (at λmax)0.0930.1880.2780.3630.4560.5600.6360.30.40.5Concentration (in Molarity)0.6O0.7

According to Lambert Beer's law, Absorbance, A= € c l Where € = molar absorptivity c =…

Answered: 5. According to the experiment, what is…

5. According to the experiment, what is the concentration of an unknown solution if A = 0.242? 8=1 a 0.197 M b. 0.240 M c. 0.258 M d. 0.289 M

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

1-10. The table shows fuel efficiency for several automobiles CO2 emission (g CO2/km) Fuel consumption (L/100 km) Car model Gasoline engine 4.6 109 Peugeot 107 266 Audi Cabriolet 11.1 346 Chevrolet Tahoe 14.6 Diesel engine Peugeot 107 4.1 109 8.4 223 Audi Cabriolet SOURCE: M. T Oliver-Hoyo and G. Pinto, "Using the Relationship Between Vehicle Fuel Con sumption and CO2 Emissions to Illustrate Chemical Principles," J. Chem. Ed. 2008, 85, 218. (a) A mile is 5 280 feet and a foot is 12 inches. Use Table 1-4 to find how many miles are in 1 km. (b) The gasoline-engine Peugeot 107 consumes 4.6 L of fuel per 100 km. Express the fuel efficiency in miles per gallon. A U.S. liquid gallon is 3.785 4 L (c) The diesel Cabriolet is more efficient than the gasoline Cabriolet. How many metric tons of CO2 are produced by the diesel and gaso- line Cabriolets in 15 000 miles of driving? A metric ton is 1 000 kg.
W 1000
Calculate the Hill Coefficient from the receptor-ligand binding data below: 10 8 6 4 2 0 -2 -4 -6- 2 4 6 8 (0 =1) 6₁ log -6 -4 -2 0 10
The concentrations of K* in water were measured with atomic absorption spectroscopy (AAS) and atomic emission spectroscopy (AES). Four water samples obtained at different cities were used, and each sample was measured one time. The measurements are shown in the table below: Tulare Clovis 8.9 ppm 6.7 ppm 7.0 ppm 5.0 ppm What is the calculated t-value (tcalculated) for the statistical comparison of these two methods? AAS AES 1.908 2.664 2.309 2.938 3.012 Fresno 5.5 ppm 5.4 ppm Selma 12.5 ppm 9.8 ppm
Please help
1, how many seconds are required? re
NO2 ÓMe
An electric current of 25.80 A transports 0.30 kC of charge. Calculate the time this took. Be sure your answer has the correct unit symbol and the correct number of significant digits. x10
Which of the following has the smallest value of IE1? O S Se Te
Calculate the kinetic energy of a ×9.41012kg comet moving at a speed of 39.0kms .Round your answer to 2 significant digits.
Convert 122.355s into ms
Name the orbital overlap for: Bond I: Bond II: Bond III: Bond IV: Bond V: Bond VI: Bond VII: