A certain substance X has a normal boiling point of 121.7 °C

Last updated: 8/5/2022

A certain substance X has a normal boiling point of 121.7 °C and a molal boiling point elevation constant K = 0.52 °C-kg-mol. A solution is prepared by dissolving some urea ((NH,),CO) in 200. g of X. This solution boils at 122.1 °C. Calculate the mass of urea that was dissolved. Round your answer to 1 significant digit.