There are many minerals which contain silver. A 2.26 g sample of one of these, stephenite, i placed in water and all of its silver ions are released. It takes 5.91 ml of 1.21 M magesium chloride to precipitate all the silver ions just released as the solid silver chloride. Calculates the mass percent of silver in stephanite to the correct umber of sig figs, assume that stephanite contains no chloride ions