How many grams of sucrose must be used to make 400 mL of 0.500 M sucrose solution? Molar Mass of sucrose : 342. g·mol–1 a 34.2 g b 42.7 g c 68.4 g d 137 g

a polar bond is formed when electrons are shared unevenly between atoms

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.

16

explanation:

the marks go by 4s