How do you find the equilibrium constant at a certain temperature?

1. You get the equilibrium constant by dividing the concentrations on the right side with the concentrations on the left side.
2. Use K=(NH3)2(N2)(H2)3 where the brackets indicate concentration.
3. there is no concentration given.
4. Note that the standard Gibbs free energy of formation for everything on the left side is zero.

What is the 5 rule in chemistry?

Lipinski’s rule of five, also known as Pfizer’s rule of five or simply the rule of five (RO5), is a rule of thumb to evaluate druglikeness or determine if a chemical compound with a certain pharmacological or biological activity has chemical properties and physical properties that would make it a likely orally active …

What is the five percent rule?

The five percent rule is a stipulation of the Financial Industry Regulatory Authority (FINRA), which oversees brokers and brokerage firms in the U.S. Dating back to 1943, it stipulates that a broker shouldn’t charge commissions, markups, or markdowns of more than 5\% on standard trades, both stock exchange listings and …

Does equilibrium constant depend on temperature?

It does, however, depend on the temperature of the reaction. This is because equilibrium is defined as a condition resulting from the rates of forward and reverse reactions being equal. If the temperature changes, the corresponding change in those reaction rates will alter the equilibrium constant.

What is the concentration of at equilibrium?

ICE stands for “initial, change, equilibrium.” ICE chart for the reaction of nitrogen and oxygen to form nitric oxide: The equilibrium concentration is the sum of the initial concentration and the change, which is derived from the reaction stoichiometry.

What is the 5\% rule for bases in chemistry?

The 5\% Rule for bases is: is less than or equal to 5\%, we consider the approximation valid. In calculating the pH of a weak acid or a weak base, use the approximation method first (the one where you drop the ‘minus x’). Then apply the 5\% rule.

How do you use the 5\% rule to solve equations?

Use the 5\% rule by starting with the approximation and calculating x. Then, decide if the approximation is valid. If is smaller than 5\%, then the approximation is valid. If not, you will need to solve the equation using the quadratic formula.

What is the 5\% rule for dissociation reactions of weak acids?

Assuming that you are referring to the dissociation reactions (which are equilibrium reactions) of a weak acid or base, you will probably find this link helpful: equilibrium 5\% rule. Here is the 5\% rule and its applications in a nutshell: 1. Recall that the dissociation reaction of a generic weak acid HA is: [HA]–> [H+] + [A-]

How do you use the 5\% rule in K B calculations?

In the K b calculations, the term ‘ [B] o minus x’ would have the ‘minus x’ dropped. The 5\% Rule for bases is: is less than or equal to 5\%, we consider the approximation valid. In calculating the pH of a weak acid or a weak base, use the approximation method first (the one where you drop the ‘minus x’).