Question

question 3 which one of the following sets of information is not sufficient enough to calculate the equilibrium constant for a reaction? the initial concentration of all the reactants. the initial and changed concentration of all the reactants. the initial concentration of all of the reaction components and the equilibrium concentration of at least one of them. the equilibrium concentration of all the reactants and products. question 4 which one of the following is a required piece of information to calculate the equilibrium concentrations of the reactants or products? reaction rate reaction stoichiometry the direction of a reaction reaction time and temperature

Explanation:

To calculate the equilibrium constant for a reaction, we need the initial and changed concentrations of all the reactants and products in order to set up an ICE (Initial - Change - Equilibrium) table and then calculate the equilibrium concentrations. Just having the initial concentration of all the reactants is not sufficient as we need to know how the concentrations change during the reaction to equilibrium and the final equilibrium concentrations. Also, to calculate equilibrium concentrations of reactants or products, we need the reaction stoichiometry which tells us the ratio of reactants consumed and products formed. Without it, we cannot make the necessary calculations even if we know the reaction direction, rate, time - temperature information.

Answer:

Question 3: The initial concentration of all the reactants.
Question 4: Reaction stoichiometry