A student titrates a \(20.00 \text{ mL}\) sample of an \(\text{HCl(aq)}\) solution of unknown concentration with a standardized \(0.100 \text{ M NaOH(aq)}\) solution using phenolphthalein as an indicator. The student records the buret readings for three trials in the table below.

Trial	Volume of \(\text{HCl(aq)}\) (\(\text{mL}\))	Initial buret reading (\(\text{mL}\))	Final buret reading (\(\text{mL}\))
1	20.00	0.50	10.50
2	20.00	10.50	20.50
3	20.00	20.50	30.50

Based on the titration data, what is the molar concentration of the \(\text{HCl(aq)}\) solution?