You are performing a transesterification (lik 4) and need to get your reagents ready. You are starting with 30.85 grams of your triglyceride which has a molecular weight of 787.22 g mol-¹. a) How many moles of triglyceride do you have? ( ...) b) How many grams of methanol will you need if the ratio of triglyceride to methanol is 1:6 in your reaction? Ensure you report to the correct number of significant figures for both and show your working. No marks without working. ( (c) 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? (

Chemistry
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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answer a b c

You are performing a transesterification (li
4) and need to get your reagents ready. You are
starting with 30.85 grams of your triglyceride which has a molecular weight of 787.22
g mol-1.
a) How many moles of triglyceride do you have? (
b) How many grams of methanol will you need if the ratio of triglyceride to methanol is 1:6 in your reaction?
Ensure you report to the correct number of significant figures for both and show your working. No marks
without working. (3)
(۔۔۔
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? (6)
d) Give a 1-2 sentence example of where proper use of significant figures might be important in the
workplace. ( _____ )
Transcribed Image Text:You are performing a transesterification (li 4) and need to get your reagents ready. You are starting with 30.85 grams of your triglyceride which has a molecular weight of 787.22 g mol-1. a) How many moles of triglyceride do you have? ( b) How many grams of methanol will you need if the ratio of triglyceride to methanol is 1:6 in your reaction? Ensure you report to the correct number of significant figures for both and show your working. No marks without working. (3) (۔۔۔ 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? (6) d) Give a 1-2 sentence example of where proper use of significant figures might be important in the workplace. ( _____ )
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