Please match the following structure to the spectrogram and please give an explanation.

Question attached

You purified a protein and determined its mass spectrum as below, calculate the molecular weight of the protein, using the peaks at 1001.0 100 1053.6 1053.6 and 1001.0 Da. 953.4 910.1 50 1112.1 m/z Relative abundance (%)

please draw the molecule and label it based on the data in the sheet and use the label in the data table.

1. What do you suppose is the molecular weight of the molecule that gives the mass spectrum below? 27 Hai 55 26 45 30 40 50 Rel Abund 100r 80- 60- 40- 20- 0- m/z0 10 Rel Abund = Relative Abundance Formula 1: 20 Formula 2: Formula 3: m/z = mass divided by charge 3. What is the base peak? 2. Provide three different molecular formulas (organic molecules, please) that are possible for a molecule with the molecular weight you have chosen. What are the degrees of unsaturation (SODAR) for each? Degrees of unsaturation: Degrees of unsaturation: Degrees of unsaturation: 60 4. Draw a possible molecule for each formula. based on Formula 1 5. Which structure do you think is correct? 72 70 based on Formula 2 80 What mass is lost from the molecular ion to get to the base peak? 90 100 based on Formula 3

Please help

With a resolution of 500 a peak will an m/z value of 297.000 from which of the following peaks?   297.439 297.603 297.356 298.000 297.232

In the mass spectra below, determine the Base Peak, the molecular ion peak and indicate the fragmentation process of ions marked with their respective value. 100 Mass Spectrum 57 80 29 60 87 40 101 M** 73 20 130 Cg H180 40 80 120 160 200 240 280 m/e yeed eseq p %

11. Determine the fraqmentation of the structure shown below that produced the fragment at m/z = 98 (base peak).

A researcher is studying cytochrome oxidase, a protein that uses iron to bind diatomic oxygen. She collects two IR spectra, shown below. In the first spectrum, no isotopic labeling is used (top). In the second, 160 has been replaced with 180 (bottom). 820 655 790 0.5- 714 695 733 820 655 755 0.5- 714 695 733 0- 600 650 700 750 800 850 Vo (cm") Based on the above ratio, which is the most likely source of this vibration, (a) the Fe-O stretch in Fell-O=0, or (b) the O-O stretch in Fell-O=O? You can assume that the atomic weight of Fe is 56. % Transmission