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?

i'm assuming that it's c.) red bank..

thats how its supposed to be

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.