What is the limiting reactant when 1.50 g of lithium and 1.50 g of nitrogen combine to form lithium nitride, a component of advanced batteries, according to the following unbalanced equation?

Li + N2 ⟶ Li3 N

Li is limiting reactant

Explanation:

Based on the reaction:

6Li + N2 → 2Li3N

Where 6 moles of Li reacts per mole of N2

To solve this question we must convert the mass of each reactant to moles and using the chemical equation we can find limiting reactant

Moles Li -6.941g/mol-

1.50g * (1mol / 6.941g) = 0.2161 moles Li

Moles N2 -Molar mass:28g/mol-

1.50g * (1mol / 28g) = 0.0536 moles N2

For a complete reaction of 0.536 moles N2 are needed:

0.536 moles N2 * (6mol Li / 1mol N2) = 0.3214 moles Li

As there are just 0.2161 moles of Li

definition

                    entropy is a measure of the randomness or the extent of disorder of a chemical process.

                      enthalpy is a measure of the heat change of a reaction occurring at a constant pressure.

measurement units:

                        entropy is measured in joule per kelvin (jk⁻¹)   whereas enthalpy is measured in joule per mole (jmol⁻¹)

requirements:

                            entropy has no requirements or limits, and its change is measured by the division between the heat change of the chemical process and the temperature.

                              in contrast, enthalpy can only be related to the heat change of the reaction under standard conditions.