How many formula units of magnesium hydroxide are found in 10.88 moles?show work pls

If 10.g of agno3 is available, what volume of 0.25 m agno3 can be prepared

Word equation for k(s)+h2o(l) yield koh(aq) + h2(g)

Asolution is made by dissolving 2.3 moles of sodium chloride (nacl) in 0.155 kilograms of water. if the molal boiling point constant for water (kb) is 0.51 °c/m, what would be the boiling point of this solution? show all the steps taken to solve this problem.