If 2.27 moles of bromine react with excess phosphorus, how many moles of phosphorus tribromide will be produced

The answer to your question is 1.51 moles of PBr₃

Explanation:

Data

moles of Br = 2.27

moles of PBr₃ = x

Balanced chemical reaction

                   2P   +   3Br₂  ⇒   2PBr₃

             Reactant      Element     Products

                   2                  P                 2

                   6                  Br                6

-Use proportions to find the answer

              3 moles of Br₂  2 moles of PBr₃

         2.27 moles of Br₂  x

               x = (2.27 x 2) / 3

               x = 4.54 / 3

              x = 1.51 moles

zfoods? ok, pressure is used to keep the heat inside and to keep the food perfect.

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.