expieriment 1 prelab

# expieriment 1 prelab - April Moore An aggie does not lie...

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April Moore sec 519 An aggie does not lie cheat steal or tolerate those who do Mathematical Formulas M=n/V n=mols Percent Error = experimental value / (real) theoretical value x 100 D=M/V M 1 V 1 =M 2 V 2 Reagents Common name Formula Molecular weight Molar heat capacity Water H 2 o 18.015 75.290 Sodium chloride NaCl 56.419 ? Materials Thermometer All glassware used in part 1 Balance top loader and analytical Expierimental apparatus procedure Part 2 1. Record the labs temperature. 2. Determine what glassware and balance will be needed to give the most precise results for a 0.100 M NaCl stock solution. 3. Calculate the mass of NaCl that will be needed to transfer the chemical to the proper glassware. 4. Select the correct serological pipettes to set up 12mL of the a. 4.80e-3 b. 9.60e-3 c. 4.48e-2 5. Establish the concentration of the solutions both gravimetrically and mathematically. Analysis Part 1: 1. What balance gives the best precision? 2.

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## This note was uploaded on 04/29/2008 for the course CHEM 101 taught by Professor Williamson during the Spring '08 term at Texas A&M.

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expieriment 1 prelab - April Moore An aggie does not lie...

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