For the following molecules, draw the structure for the fragment that you would expect to be the base peak. Upload your answers. a. P love b. d. NH₂
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- A size standard: Group of answer choices A. Is run along with every sample on a run. B. Is used to determine the size of unknown fragments in a sample. C. Has an expected peak pattern that is recognized by the analysis software. D. All of the aboveAnswer the following questions based on the mass spectrum shown below: a. What is the molar mass of this compound? b. What is the mass of base peak? c. Does this molecule contain a bromine or chlorine? Provide a brief explanation. d. Student A thinks the molecule may contain one nitrogen. Is the student correct? Provide a brief explanation. 100 M=53 80 M=133 M=135 40- M=93 M=95 20- 25 50 75 100 125 150 175 m/z Relative IntensityIn mass spectrometry, the molecular ion peak occurs at O A. the largest m/z value. O B. the smallest m/z value. O C. the m/z value of the most abundant ion. O D. an m/z value equal to the molecular weight of the sample molecule.
- Answer the following questions based on the mass spectrum shown below. a. What is the molar mass of this compound b. What is the mass of base peak? c. Does this molecule contain a bromine or chlorine? Provide a brief explanation.? Student A thinks this molecule may not contain nitrogen. Do you agree? Provide a brief explanatio3. Fill in the following information. Choose answer from a, b, and c.number 13.( POST) Please answer A,B,C. thank you!
- A. Draw structure of compound. B. Label base peak and molecular ion peak.Guide Question: 1. Draw the molecular structure of aspirin. Identify the molecular ion peak and base peak based on the mass spectrum of aspirin. 2. Analyze the mass spectrum of aspirin. Identify the structure of the fragment ions for the three tallest peaks. 3. Assign the following M+ peak (molecular formula). Write down the C, H, O atoms (note: separated by a comma). 180 m/z 138 m/z 120 m/z 92 m/z 64 m/z 43 m/z( explain well with step by step answer ).
- Which of the indicated protons would have the smallest pKa value? C. H. H CH3 EC H H. d. b. b. C A Moving to another question will save this response. O O O 0explain how many peak and the type of each on ,mention Schiff base and (please please please write with keyboard not hand writing3. Using the data at right: a. Calculate the absorbance of each sample. You will need to express the %T values as decimals before calculating the logarithms. (e.g., for T = 25%, A = -log 0.25 = 0.602) b. Use the graph paper on the back of this page (or a spreadsheet) to plot absorbance vs. concentration. Make a proper graph, with labeled axes, uniform scales, etc. Use a ruler to draw the best-fit line.. C. Use the graph to find the concentration of the un- known sample. (Draw dotted lines on the graph showing how you found your answer.) CONCENTRATION PERCENT (ppm) TRANSMISSION 0 100.0 100 74.1 200 54.9 300 40.7 400 30.1 500 22.3 unknown 31.6 ABSORBANCE