{x} grams of Yr2 and 2.500 grams of X react according to the unbalanced reaction below. Calculate the percent yield if {y} grams of YrX3 is collected. The molar mass of Yr2 is 45.656 g/mol, the molar mass of X is 95.416 g/mol, and the molar mass of YrX3 is 309.076 g/mol. Yr2 + X →YrX3