IDNLearn.com provides a comprehensive solution for all your question and answer needs. Discover thorough and trustworthy answers from our community of knowledgeable professionals, tailored to meet your specific needs.

The molar mass of an insecticide, dibromoethane, is 187.9 g/mol. Its
molecular formula is C2H4Br2. What percent by mass of bromine does
dibromoethane contain?
OA) 42.52%
OB) 2.14%
OC) 85.05%
OD) 12.78%
E) 6.39%