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rate = [A]x[B]y

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How can the rate constant be determined form the rate law?

The rate constant can be determined from the rate law by rearranging the rate equation to isolate the constant. For a reaction with a rate law of the form ( \text{Rate} = k[A]^m[B]^n ), where ( k ) is the rate constant, ( [A] ) and ( [B] ) are the concentrations of the reactants, and ( m ) and ( n ) are their respective orders, one can measure the reaction rate at known concentrations. By substituting these values into the rate law and solving for ( k ), the rate constant can be calculated. This process often involves experimental data collected under controlled conditions.


What must be known for the rate constant to be calculated from the rate law?

The reaction rate at known reactant concentrations.


What would happen to the rate of a reaction with rate law rate kNO2H2 if the concentration of NO were halved?

In the given rate law, the rate of the reaction is dependent on the concentration of NO and possibly other reactants. If the concentration of NO is halved, the rate of the reaction would decrease proportionally, assuming that NO is a reactant in the rate law. Specifically, if the rate law is of the form rate = k[NO]^n[other species], the rate would be affected by the new concentration of NO, resulting in a reduced reaction rate. The exact impact on the rate would depend on the order of the reaction with respect to NO.


How does a change in temperature from 25o to 50o affect the rate of the reaction rate?

The general rule of thumb is that the reaction rate will double for each 10ºC change in temperature. So, going from 25 to 50 degrees, would increase the reaction rate APPROXIMATELY by 4.5 times. This is not a law, but just a general rule of thumb for approximating the rate.


What is the rate of a reaction if the value of k is A and B are each 2 M?

The rate of a reaction can be determined using the rate law expression, which involves the rate constant (k) and the concentrations of reactants (A and B). Without knowing the specific form of the rate law, we cannot calculate the rate based solely on the values of the concentrations A and B. Additional information about the rate law or the order of the reaction with respect to A and B would be needed.


How is the affect of concentration changes on the reaction rate seen in the rate law?

Changes in concentration affect the rate of the reaction as defined by the rate law equation. Increasing the concentration of reactants typically leads to an increase in the reaction rate since there are more reactant particles available to collide and form products. The rate law equation quantifies this relationship between concentration and reaction rate through the reaction order with respect to each reactant.


What is the order of the reaction with respect to clo2?

The order of a reaction with respect to ClO2 is determined by the exponent of ClO2 in the rate law expression. If the rate law is of the form rate = k[ClO2]^n, then the order with respect to ClO2 is n. This value can be determined experimentally by measuring how changes in the concentration of ClO2 affect the reaction rate. If the concentration of ClO2 does not appear in the rate law, then the order with respect to ClO2 is zero.


A general law municipality becomes eligible form home-rule status when its population exceeds?

5000


How can the rate constant be determined from the rate law?

The rate constant is the reaction rate divided by the concentration terms.


How is the effects on a concentration change on the reaction rate seen in the rate of law?

The effect of concentration change on reaction rate is described by the rate law, which expresses the rate of a chemical reaction as proportional to the concentrations of the reactants raised to a power corresponding to their reaction orders. For example, in a rate law of the form rate = k[A]^m[B]^n, an increase in the concentration of reactant A will lead to an increase in the reaction rate, assuming m > 0. This relationship highlights that reaction rates can be directly influenced by the concentration of reactants, with higher concentrations generally resulting in faster reaction rates. The specific impact depends on the order of each reactant in the rate law.


Which of these mechanisms is consistent with the rate law?

The mechanism that is consistent with the rate law is the one that matches the experimentally determined rate equation.


What form of the ideal law would you use to calculate the volume of gas?

Make V explicit in the general for of the gas law: P.V = n.R.T then you get V = (n.R.T) / P