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help me plz anybody, any where, chem is hard, im

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help me plz anybody, any where, chem is hard, im
Old 02-26-2008, 11:06 PM   #1 (permalink)
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Default help me plz anybody, any where, chem is hard, im

trying to learn show work, plz!? calculate the exact molarity of a diluted solution based on volumes? calculate the exact concentration ofthe stock HCL solution? calculate the exact molarity of NaOH solution based on tritration with the standard HCl solution? calulate the average value? calulate the exact molarity of the vinegar sample, for each trial and an average value of all.

using the avg value of the molarity of the acetic acid solution, calculate the %(w/w) of the vinegar solution. the density is 1.004 (g/ml)
compare the %w/w value obtained in theexperiment to the accepted value for comercial vinegar.

HCL
exact concetration: .6897 m
volume of stock: 45ml
volume HCL prepared: 100ml
Exact concentration______
.2M NaOH
valoume of HCl used 150 ml
volume of Naoh(ml) 10.20 10.14 10.20
exact concentration ______
avg____
VINEGAR
volume of vinegar titrated 5.00ml
volume of NaOH used(ml) 16.86 16.79 16.70
exact concentation ____
avg molarity of acetic acid______
%w/w CH3COOH ______
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