Atitration is performed where 0.150m sodium hydroxide solution is added to a solution of khp.
if 25.00ml was required to reach the end point, how many moles of khp must have been present?

0.00375 moles OF KHP

Explanation:

Equation of reaction of NaOH and KHP :

KHC₈H₄ O₄(aq) + NaOH(aq) → NaKC₈H₄O₄(aq) + H₂O(l)

the reaction required 25ml

Molarity = no of mole / volume in liters

no of moles = Molarity × volume in liters

no of moles of NaOH = 0.150 × (25/1000) = 0.00375 moles

using the balanced equation above

1 mole of NaOH requires 1 mole of KHP

therefore

0.00375 mole of NaOH will require 0.00375 mole KHP.

fe 55.85 g/mol and h2o 18.02 g/mol.

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.