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Pre-Lab Information
Purpose Ems ore the elects of variables on the rale of chemical reactions. Time Approxil-atel, nures Quest. How do the fa:to’s of tempeiatiie are.a affe,l’e iate of ,em ieact o Hypothesis If
Summary Yo
Safety
.of, rig F :Dat Di apron • Insp.- g as, aie s-a,g .e..perner.: Check for cr.ps cracks, or other sof. comems • Report al F031[1:11t, — no ma-ter . big or small—to your teachen Lab Procedure
Step 1: Gather Materials • one 400 beake • 15 sodiun’ bicarbor
. stir te • granared cylincle • hennDn’eter
• stopwatch spa-Lla
Step 2: Establish Baseline fa! Comparison Room Temperate. Water, al,se a gia:Lia-e: . ad: s’ rosin -errpe F- iie to a Nal., IM Stir the Fei .ittai od rnal’: it , tempeatt the beale cl Re co th: of -I-: .atef iasle Reset -he .stcp,atch -D zero If ,oLi [ID not ha:e stop,atch note the time cn theclDck M Add 1 sodium bicarbonate table. the beaker of water and Mad the stopwatch
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