Treating trimethylamine with 2-chloroethyl acetate gives acetylcholine as its chloride.Acetylcholine is a neurotransmitter.
Danielle Gibson Chem 115 Erin Battin Class 1 Notes 1/12/16 1/6/16 Chem 115 Notes Chapter 1 Types of Numbers Used in Chemistry o Exact Numbers A number with a value that is exactly known No error or uncertainty in the value Numbers obtained by counting individual objects AND/OR defined numbers within a given measurement system. o Measured Numbers Number with a value that is NOT exactly known due to the measuring process Some error or uncertainty in the value Amount of error depends on the measuring device (increment and distance between markings) and you! Scientific Figures, and Uncertainty o Measured numbers will ALWAYS contain some uncertainty or error o This error is expressed by the number of significant figures (or digits) reported for the measured number o Something to Pay attention to: As the number of significant figures increase, uncertainty/error decreases, and the precision of the measuring device increases Rules for Determining Sig Figs o Rule for determining the Number of Significant Figures (1.) All nonzero digits