Calculations:
Concentration of NaOH Solution (M):
The concentration of the NaOH solution was determined to be 0.097 M in lab 6a.
Amount of NaOH to Reach the Equivalence Point (mol):
Trial 1:
0.097 M NaOH x 0.015080 L NaOH = 0.00151 mol NaOH
Trial 2:
0.097 M NaOH x 0.016542 L NaOH = 0.00165 mol NaOH
Trial 3:
0.097 M NaOH x 0.015973 L NaOH = 0.00160 mol NaOH
Amount of HCl in the Solution (mol):
Values are equal to the number of moles of NaOH required to reach the equivalence point, because NaOH and HCl react in a 1:1 molar ratio.
Volume of NaOH Solution to Reach the Equivalence Point (mL):
Values are Taken from the Attached Graphs (See Above):
Trial 1: 15.080 mL
Trial 2: 16.542 mL
Trial 3: 15.973 mL
Concentration of the HCl Solution (M):
Trial 1:
0.00151 mol HCl = 0.0755M HCl
0.0200 L HCl
Trial 2:
0.00165 mol HCl = 0.00825 M HCl
0.0200 L HCl
Trial 3:
0.00160 mol HCl = 0.0800 M HCl
0.0200 L HCl
Average Concentration of the HCl Solution (mol/L):
0.0755 M + 0.00825 M + 0.0800 M = 0.0546 M HCl
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