9. An aqueous solution containing MgCl2 and HCl was analysed by first titrating a 20.00 mL aliquot to a bromocresol green endpoint with 14.02 mL of 0.02932 M NaOH. A 10.00 mL aliquot was then diluted to 75.00 mL with distilled water and passed through a strong-acid ion exchange resin. The eluate and washings required 35.94 mL of the NaOH solution to reach the endpoint. Calculate the molar concentration of HCl and MgCl2 in the sample.