https://www.alberta.ca/system/files/custom_downloaded_images/edc-science30-data-booklet.pdf

9) Calculate the change in mass and corresponding energy change per mole of uranium-235 in the nuclear reactions given. Use masses given in the Data Booklet and those provided in the following table. Mass Nuclide (10 3 kg/mol) bromine-91, " Br 90.916 27 lanthanum-142, 57 141.899 71 on+ 235 U- 2 nt 94 Sr + 140 Xe 92 38 54 strontium-94, Sr 93.915 29 xenon-140, Xe 139.918 43