If our patient in the case study has a stomach volume of 0.205 L and a stomach pH = 1.21. He takes one Mg(OH)2 antacid tablet that has 2.671x10-3 moles of Mg(OH)2. Assuming the antacid is completely dissolved and reacted in the stomach and doesn't change the stomach volume, what is the resulting stomach pH after taking the antacid tablet?