Science Homework Help

answer the questions below about Caffiene lab (organic chemistry 2 ) 1. Please show your calculations for obtaining your percent yield. Include the calculations for the theoretical yield as well. Also, if something went wrong during the course of your experiment (i.e you spilled your product, did the work-up wrong, etc.) you can explain about it here. (we used 0.21 g NCS and 6ml chloroform, weight of empty flask=91.7g , weight of flask +product =85.19g)

2. Analyze your NMR spectra using Mestrenova and upload a picture of it on this assignment. In your spectra, you should have the chemical shifts of each peak, and the integration underneath it as well. You also have to include an explanation matching up the peaks in your NMR spectra to that of the product. Explain why you think you matched up the peaks properly based on chemical shift, integration, and splitting pattern. If you have extra peaks in your NMR that do not match up to any proton peaks in your product, explain where they could have come from. 

3. Include a picture of your TLC plate and calculate Rf values for the starting material and product.

https://drive.google.com/file/d/12ahUxUQvCVVP7bdIdAkGlygvhVnWqN3_/view?usp=sharing