General Chemistry lab help

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PynverZnevr2294

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I need help with a chemistry lab. All data you need has been provided in the images and excel sheet.

*The known wavelength for the orange line of the Krypton sample is 605 nm. You will need this information for the analysis question number 2*

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4.2 4.5 5.6 5.9 Wavelength (nm) 404.7 435.8 546.1 577 Mercury Callibra 700 600 500 wavelength (nm) Grid Position # 400 300 200 100 0 0 1 Mercury Callibration of Spectroscope y = 101.03x - 19.322 1 2 3 4 Grid Position 5 6 7 32 Chem 111 Lab Manual Krypton III. Measurements on Sodium Sample and Unknown Sample(s) has a prominent line called the sodium D line. This line is due to the valence electron in Na moving from an 1. Using the procedure just described, record the color and position of each line for the res sample. Sodium excited state a 3p orbital) back to its ground state 3s orbital. 2. Record the color and position of each line for each unknown sample. Data Collection 1. Calibration data for spectroscope: Record grid positions in this table. Grid Position Wavelength (nm) 404.7 4.2 Color Violet 435.8* Blue 4.5 5.6 5.9 546.1* Green 577.0* Yellow-orange 579.1* Yellow-orange 623.4 Orange-red - 690.7 Red * Most intense lines Krypton 2. Line spectrum data for sodiunrsample: Draw a line on the grid below in the correct position for each observed line. Above each line, indicate the color of the line. Below each line, indicate the grid position numerical value. . . Cocorolow 6.7(red) un 4.5 5.7 blue green Color BARAAN BE 0 9 10 Grid position 3. Line spectrum data for unknown sample(s): for each sample, Draw a line on the grid below in the correct position for each observed line. Above each line, indicate the color of the line. 40 Laboratory 4 Shedding Light on the Structure of the Atom AS Atoms First Approach to the General Chemistry Laboratory, Second Edition 33 Sodium om an hellow) 29., if the line is between 2 and 3 Below each line, indicate the grid position numerical, on the grid, you might write "2.4" for the grid SAMPLE 1 4.5 5, (green) 6. Corange) Color 7 10 2 6.0 (orange-yellow) Grid position 4.1(violet) 4.6(live) 6.8Cred) SAMPLE 2 5.2(green) Color TERREN 3 Grid position 5.5(green) 6-0(yellow) 6.2(yellow-orange) 6.4(orange-red) 6.5(red) SAMPLE 3 Color 7 10 3 Grid position 4.5(bive) 6.0 yellow) 5.OCteall 6.7(red) SAMPLE 4 Color 2 9 10 Grid position Analysis 1. Generation of calibration curve: To generate the line that best fits our calibration data, we will be using the method of least squares. The basic idea is to minimize the distance of the line from all the data points concurrently. The calculus behind this method (which involves partial derivatives) is beyond the scope of this lab, yet the calculations are straightforward enough. 8 Laboratory 4 Shedding Light on the Structure of the Atom excel Plot & trend line to answer these Questions 41 34 Chem 111 Lab Manual The line y slope: = mx + b, the least-squares or best-fit line that is associated with the data points (Xi, y), (X, Y), ..., (x, y.), can be calculated using the following equations: Equation 5 Y-intercept: n xy) - (x) ) n(x) - (x) Σν - (Σκ) Equation 6 where 17 . +x,in + Xn ry XY + X2V2 + = x+, x = x; + x2 + y = yı + y2 +1. x2 = x + x + . + Yn + x2 (a) Fill in the following table based on the calibration data you collected: x2 * (wavelength) y (grid position) ху 404.7 404.7 ( 435.8* 546.1* 577.0* 579.1* 623.4 690.7 * Most intense lines 42 Laboratory 4 Shedding Light on the Structure of the Atom (b) Use the values from part (a) to caluate the following values: (e) Plug the values from part (b) into Equations 5 and 6 to calculate the slope and y-intercept of the least squares line [n is the number of (x, y) data points from part (a)]. b (d) Using your data in part (c), plot your line spectrum data and least-squares line on the following graph: Laboratory 4 Shedding Light on the Structure of the
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Explanation & Answer

Hello Claire! I am done with the lab report. :)Since I cant clearly see the line spectra from your book, I searched the internet for some spectra. So the second word file that I attached is just a justification of our answers to the unknown sample.If you have questions let me know. Goodluck!

Shedding Light on the Structure of the Atom
Name:

DATA:
Table 1. Calibration data for spectroscope using Krypton
Color
Wavelength (nm)
Violet
404.7
Blue
435.8
Green
546.1
Yellow-orange
577.0

Grid Position
4.2
4.5
5.6
5.9

Figure 1. Krypton calibration for spectroscope. Plot of wavelength (nm) versus grid position.

Wavelength (nm)

Krypton Calibration for Spectroscope
610
560
y = 101.03x - 19.322

510
460
410
360
3.5

4

4.5

5

5.5

6

6.5

Grid Position

Equation of the line:
Slope (m):
y-intercept (b):

Wavelength = 101.03 (Grid position) – 19.322
m = 101.03
b = -19.322

Table 2. Spectroscope data for Unknown Sample 1.
Color
Grid Position
Violet
4.5*
Blue
5.4
Green
5.5
Orange
6.0
*data used for sample calculation

Wavelength (nm)
435.31
526.24
536.34
586.86

Table 3. Spectroscope data for Unknown Sample 2.
Color
Grid Position
Violet
4.1*
Blue
4.6
Green
5.2
Orange-Yellow
6.0
Red
6.8
*data used for sample calculation

Wavelength (nm)
394.90
445.42
506.03
586.86
667.68

Table 4. Spectroscope data for Unknown Sample 3.
Color
Grid Position
Green
5.5*
Yellow
6.0
Yellow-orange
6.2
Orange-red
6.4
Red
6.5
*data used for sample calculation

Wavelength (nm)
536.34
586.86
607.06
627.27
637.37

Table 5. Spectroscope data for Unknown Sample 4.
Color
Grid Position
Blue
4.5
Teal
5.0*
Yellow
6.0
Red
6.7
*data used for sample calculation

Wavelength (nm)
435.31
485.83
586.86
657.58

Sample calculations:
Sample 1:

Wavelength = 101.03 (Grid position) – 19.322
= 101.03(4.5) -19.322 = 435.31 nm

Sample 2:

Wavelength = 101.03 (Grid position) – 19.322
= 101.03(4.1) -19.322 = 394.90 nm

Sample 3:

Wavelength = 101.03 (Grid position) – 19.322
= 101.03(5.5) -19.322 = 536.40 nm

Sample 4:

Wavelength = 101.03 (Grid position) – 19.322
= 101.03(5.0) -19.322 = 485.83 nm

ANALYSIS:
2. Energy of the orange line of Krypton (605 nm)
(6.63 × 10−34 𝐽𝑠) ∗ (2.998 × 108 ...