7/23/2019 How to Do Baking Soda Lab

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  Jim Askew, FacilitatorTiger Chemistry ClassCrescent High School

Jerod will be the Director for this project All !"estions go thro"gh him, and his decisions are final

C#$ has asked o"r lab to analy%e and rank three brands of baking powder As a combined gro"p,

brainstorm the following ideas&

' How can yo" "se stoichiometry to determine the mass of sodi"m bicarbonate ()aHC*+ in

baking powder-

)aHC*+ . HCl . (inert components from baking powder / )aCl . H0* . C*0 . (inert

components from baking powder

0 How can yo" calc"late the amo"nt of HCl needed- (12 HCl is a3ailable and e4cess HClm"st be "sed

+ Design an e4perimental proced"re to perform the desired analyses (All three gro"ps will"se the same proced"re

5 6rands of baking powder "sed& Cal"met 7 '+89: o%; Clabber <irl 7 ''89'= o%; #ed Star 7'8:9'= o%> (C*0 is hea3ier than air and partially sol"ble in water

?ach of yo"r three gro"ps will cond"ct the analysis of one of the baking powder brands After theproced"res, come together as a combined gro"p to share data and determine yo"r ranking andidentify the @best b"y@

The combined lab gro"p will s"bmit one typed report incl"ding the following&

' $nitial orking Hypothesis& ($ncl"de all hypotheses yo" plan to test0 $nitial orking Blan& ($ncl"de specific proced"res yo" plan to "se+ ?4perimental Data& (Show A meas"rements and calc"lations from all three gro"ps5 Analysis of the Data& (Does the data s"pport yo"r hypothesis- hy- hy not-> 2odifications& (Did yo" make any changes to the initial working plan- hy-1 A etter of #esponse& S"bmit a co3er letter, directed to the client, o"tlining what was done,

what was fo"nd, and how this addresses the !"estions proposed by the client

$n order to meet Dr 2eckels"rgers sched"le, ha3e the typed report on my desk three days fromtoday $n addition to the typed report, $ need each gro"ps ab #eport <"ide for o"r records