3500 3000 2500 2000 1500 1000 500 Wavenumbers (cm-1) 99 EBSI 1455.48 please use the following file, just nmr Sat Aug 31 14.40.38 2024 (GMT-05.00) 1596.48 1310.34 1166.72 1202 73 827.15 62 619 En ne 1699.49 587.55 744.12 R

OA B. OC D. CE. Compound G is an Aldehyde Compound H is a Carboxylic acid Compound is an alcohol A Compound B is a ketone Compound is an Adehyde A Compound B is a Ketone B Compound B is an Aldehyde Compound is a Ketone Compound is an Alcohol Compound B is a Carboxylic acid

Using the HDI, IR, and NMR data from the previous questions, select the structure of the unknown compound with the formula C5H10O. Note: All the structures provided here have the same formula of C5H10O to highlight the importance of characterization data. Think about theoretical HDI, IR, and NMR data for each structure option. O 32 -OH OH

6. C8H100 11 TRANSMITTANCE LOD HSP-04-492 0+ 10 4000 9 3000 8 5 7 6 : 5 ppm 2000 4 HAVENUMBERI-l 2: 2 1 3 1500 2 سهر 1 1000 0 500 200 T 180 CDS-06-431 DEPT-90 T 160 DEPT-135 140 120 100 لك -2 peaks u ppm 80 60 40 20 0

The levels of Vitamin B1 in a sample of milk was determined using the Standard Addition method and technique of fluorescence spectroscopy. 18.0 ml of the milk sample was diluted to 20.0 ml using distilled water and then the fluorescence was measured. The resulting signal was 210 units. A spike was made by taking 18.0 ml of the same milk sample, adding 1.0 ml of a 6.0 ppm Vitamin B1 standard solution, and then diluting to 20.0 ml using distilled water. The signal of the spiked milk was 540 units. Calculate the concentration of Vitamin B1 in the original milk sample (in ppm). Report to 3 decimal places.

Lrdocaine USP (ATR) 95- 90 85 80 75 70 65 60 55 50 45 Lidocaine 40 4000 3500 3000 2500 2000 1500 1000 Wavenumbers (cm-1) %Transmittance IZ 3243.36 3021.30 2968.47 2921.13 2799.39 1661.66 1593.98 1491.43, 1449.061 422.12,384.681371.62 1291.03264.55 1206.99 1165.931119.56 1091.78072.77. 1034.33 970.79986.39 917.91, 885.23 763.76 703.94 615.01599.90

Res с Lab D Spri Res E Col app.tophat.com/e/476934/content/course-work/item/1144159::eb0ba37a-a462-452d-afdd-a1d821adb456 Spr image ifrее Spr Absorbance Wo 8 Courses / Spring 2024 CHEM 2038: Gen Chem One Laboratory Manual 0.400 0.350 0.300 0.250 0.200 0.150 0.100 0.050 0.000 X 0.000 Mai A ALE H ● 4 q C Hor C Hor y = 9.7057x -0.0034 R² = 0.9939 Section: CHEM 2038 - Section 003 - Spring 2024 7. Regression Analysis (Formula Question Type) - Image Absorbance Plot 0.005 0.010 0.015 0.020 Usi hun Concentration ● C che Join: 476934 C che BO 0.025 0.030 0.035 Par Wh 0.040 Lab hov Saida ✓ S Close

The given question was incorrectly answered, please identify what the errors made were. Then correctly answer and explain the given the question.

4000 3500 3000 2500 Wavenumbers (cm-1) 2000 20 1500 1000 500 1705.32 1354.36 1135.21 1476.83 997.91 2969.16 %Transmittance 1274.53 832.71 1427.75 953.40 553.28 790.43 1218.83 1585.98 894.05 671.73 780.29 463.73 100 C

10. a. Light at 278 nm passes through protein RNase A with optical path length is 1μm and the concentration of protein RNase A is 0.5 M. If the absorbance is 0.5, what is the absorptivity in M-1 cm-1? b) What is the corresponding transmittance?