Please share this suggested wording with your legal advisor.
I give to Curators of the University of Missouri, for the St. Louis Campus, a Missouri non-profit (Tax ID #43-6003859), or its successor, the sum of $___________________, for any purpose as the University of Missouri–St. Louis deems appropriate.
I give to Curators of the University of Missouri, for the St. Louis Campus, a Missouri non-profit (Tax ID #43-6003859), or its successor (the real estate located at __________________ or 1000 shares of XYZ stock), for any purpose as the University of Missouri–St. Louis deems appropriate.
I give to Curators of the University of Missouri, for the St. Louis Campus, a Missouri non-profit (Tax ID #43-6003859), or its successor, ________% of the rest of my estate, for any purpose as the University of Missouri–St. Louis deems appropriate.