Answered: What does this figure depict? Frequency…

What does this figure depict? Frequency 12 10 B 4.5 9.5 14.5 19.5 24.5 29.5 34.5 39.5 44.5 Frequency Distribution Histogram Cumulative Frequency Distribution Histogram Frequency Polygon Box Plot

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...

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The spectrum below has two peaks: one around 650 nm and one around 710 nm. Which of the following statements is true about this spectrum? 1.6 1.4 1.2 1 0.8 0.6 0.4 0.2 400 500 600 700 800 900 Wavelength (nm) O The peak at 650 nm is the most intense peak O The peak at 650 nm is the highest energy O The peak at 710 nm is the most transmitted light O None of the above Absorbance
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When a red light with a wavelength of 670 nm shines on a piece of metal, an electron is ejected. What is the energy of the photon absorbed by the electron to overcome the attractive forces? 4.7 x 10-35 J -37 4.3 x 10³ J 3.3 x 10-¹⁹ 19 3.0 x 10-¹⁹ J 2.9 x 10-³7 J Below is an emission spectrum with two specific lines labelled 1(orange) and 2 (green). red A Which energy level diagram best represents the labelled electronic transitions? 1 2 1 B 1 2 1 C 2 2 D 1 2 violet O A
A laser pulse at 500. nm contains 4.95 mJ of energy. How many photons are in the laser pulse? 1.25 x 1016 8.04 x 10-17 3.98 x 10-19 1.25 x 1019
drawing help- observations for the fluorescent and incandescent light spectra and upload drawings below. drawing should show the relative positions of each band on the scale and the bands should either be drawn in the correct color or labelled with a description of the color. fluorescent light spectrum - incandescent light spectrum - Compare the two observed spectra above. How are they similar? WHY are they different?
What is the frequency in Hz, of a photon with an energy of 3.7 x 10-18J? Group of answer choices 5.6 x 1015 2.5 x 10-51 1.8 x 10-16 5.4 x 10-8
Part A1: Do you notice any pattern in the color of the light used to detect absorbance (preset) and the color of the solution? If so, describe the pattern. What happened to the transmittance when the wavelength being detected was changed to approximately the same color as the solution? Try to come up with an explanation for this. How does the percent transmittance of the preset wavelength compare to the percent transmittance when looking at the transmittance over the entire visible spectrum? What happened to the transmittance when the width of the sample was changed? Explain why this makes sense. Explain why there was an upper maximum on the concentrations for each solution. What would happen to the absorbance or percent transmittance of a sample above that concentration? If you needed to measure the exact concentration of a solution whose concentration is above that limit, is there anything you can do?
Cathode Ray Discharge Tube Demonstration An Exploration (Because of the DANGER involved and the fragile nature of the device, this is a demonstration rather than a true Exploration) Background information: Until recently, almost all televisions used a device known as the cathode ray tube, or CRT, to display the images. In a cathode ray tube, the "cathode" is a heated filament (not unlike the filament in a normal light bulb). The heated filament is in a vacuum created inside a glass envelope or "tube." The "ray" is a stream of electrons that naturally pour off the heated cathode into the vacuum. The Cathode Ray Tube is powered by an extremely high voltage DC current system and is dangerous! Electrons are negative. The anode is positive, so the anode attracts the electrons pouring off the cathode. The electrons hit the phosphorus screen and generate green photons, which we can see. Safety: The cathode ray discharge tube is not a toy and should be handled with a lot of precaution. An…
. Note the display shows wavelength and color. Record these and CALCULATE frequency using the wave equation Voltage = 0, Target = Sodium Current Wavelength nm Color Intensity 20% Intensity 100% Calculated frequency from wavelength X1014 Hz 750 Burgundy 0 0 600 Orange 0 0 500 Green 0 0 400 Purple 0.029 0.141 300 Gray 0.112 0.549 250 Gray 0.197 0.964 200 Gray 0.346 1.695