Calculate the molarity of the HCl solution used in the titration. You should calculate the molarity for each of your three measurements and then calculate the mean molarity (M) and the standard error. You should present your molarity in this form: XXX ± XXX M (± SEM). Show your work. Be sure to consider significant figures in your calculations. The equation for the reaction is:
NaOH + HCl → NaCl + H2O
Hint: You know the concentration of the NaOH (0.01 mole/L) and you measured the number of mL of this solution used to neutralize the HCl.
Dilution
Concentration (M)
ABS 1
ABS 2
ABS 3
1 mL/500 mL
0.002
0.023
0.023
1 mL/100 mL
0.01
0.12
0.117
0.116
1 mL/50 mL
0.02
0.235
0.235
0.233
0.2 mL/50 mL
0.004
0.051
0.054
0.048