In 1978, scientists extracted a compound with antitumor and antivirus properties from ma-
rine animals in the caribbean sea. a sample of the compound didemnin-a of mass of 1.756 mg was analyzed and found to have the following composition: 1.086 mg 0.0.148 mg h.
0.159 mg n. and 0.363 mg 0. the molar mass of didemnin-a was found to be 942 g/mol.
what is the molecular formula of diciemnin-a?

Base your answer on the information below and on your knowledge of chemistry. nitrogen dioxide, no2, is a dark brown gas that is used to make nitric acid and to bleach flour. nitrogen dioxide has a boiling point of 294 k at 101.3 kpa. in a rigid cylinder with a movable piston, nitrogen dioxide can be in equilibrium with colorless dinitrogen tetroxide, n2o4. this equilibrium is represented by the equation below. 2no2(g) n2o4(g) + 58kj at standard pressure, compare the strength of intermolecular forces in no2(g) to the strength of intermolecular forces in n2(g).

What is the lowest number energy level where a d sublevel is found

Which of the following is most likely true about water in chemical systems? a) water dissolves nonpolar ionic compounds. b) water dissociates ionic compounds. c) water dissociates covalent molecules. d) water dissolves nonpolar covalent substances.