Question

You are performing a transesterification (like in prac 4) and need to get your reagents ready. You are starting with 20.60 grams of your triglyceride which has a molecular weight of

927.48 g mol¹¹. a) How many moles of triglyceride do you have? (3 marks) b) How many grams of methanol will you need if the ratio of triglyceride to methanol is 1:12 in your reaction? Ensure you report to the correct number of significant figures for both and show your working. No marks without working. (3 marks) c) You are getting assessed on your use of significant figures. Why is being able to do things like report to the correct number of significant figures and round correctly and reliably important? (1 mark) d) Give a 1-2 sentence example of where proper use of significant figures might be important in the workplace. (1 mark)