CHEM 7L Lecture Notes - Lecture 1: Reagent, Gravimetry, Lab Report
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Must remember to describe what you are working on. Measurements must be associated with what is being measured. Look at the template before you start the experiment because then you know what you need to record. Use three different pieces of glassware to deliver 10 ml of water. Calculate actual volume of delivered water gravimetrically (by mass). Td: to deliver (do not blow out) they will deliver the amount with gravity. Tc: to (cid:272)o(cid:374)tai(cid:374) (cid:894)(cid:271)lo(cid:449) out(cid:895) (cid:449)e do(cid:374)"t use these here a(cid:374)y(cid:449)ay so it"s okay. Proper use of a pipette: go to meniscus line. When doing a reading, include one uncertain digit. Compare you averages and error of three trials to that of the colelctive class of up to 24x3 trials. You will determine which glassware is most accurate, and most precise. By next monday, submit lab report 1 online(worth 3% of overall grade) Prepare for experiment 2 by washing and having crucibles placed in oven.