"Ogres Ocean water (OOH for short) was tested in a similar manner to the procedure given in experiment 1 in UFVs Chem 114 lab manual. However, in this case, 50.00 mL of OOH was diluted to 250.0 mL with deionized water. In the determination of the total cation concentration, 25.00 mL aliquots of the dilute OOH were passed through a cation exchange column and the eluent titrated with an average 27.42 mL of 0.1134M NaOH. In the determination of calcium and magnesium cations, 25.00 mL aliquots of the dilute OOH were titrated with an average 34.03 mL of 0.01018M EDTA.

*Take note that the ratio of magnesium to calcium cations in OOH is 3:2 and the dilution and ratio used are both different from what is stated in the lab manual.

Using the EDTA titre, calculate the combined moles of Mg²⁺ and Ca²⁺ cations present in the 25.00 mL of dilute OOH titrated with the EDTA solution.