Calculate the mass of ammonia (NH3) that contains a billion 1.00 × 10 hydrogen atoms. Be sure your answer has a unit symbol if necessary, and round it to 3 significant digits. x10

your mom.com . : 0000

what is the question?

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.