Chlorine gas can be prepared in the laboratory by the reaction of hydrochloric acid with manganese(IV) oxide: 4HCL(aq) + MnO2(s) > MnCl2(aq) + 2H2O(l) + Cl2(g)

You add 38.3 g of MnO2 to a solution containing 47.7 g of HCl.

(a) What is the limiting reactant? MnO2 or HCL?

(b)What is the theortical yield of CO2?

(c) If the yield of the reaction is 77.9%, what is the actual yield of chlorine?

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.

it forms an anion that has a larger radius. anions have a negative charge and are larger than the original atom.