(a)
Interpretation:
The time required for 99.999% of the 2.0 M HCl by 2.0 M NaOH with equal volume needs to be determined. The second order rate constant is
Concept introduction:
The
On the basis of different orders, reactions can be classified as first order, second order and third order reaction. For a second order reaction the relation between the concentration and rate constant can be written as:
(b)
Interpretation:
Whether the rate of the acid-base neutralization to be limited by the rate of reaction and speed of mixing needs to be determined.
Concept introduction:
The rate of reaction expresses the change in the concentration of reactant or product molecules with per unit time. There are different ways to express the rate of reaction such as instantaneous rate or average rate.
On the basis of different orders, reactions can be classified as first order, second order and third order reaction. For a second order reaction the relation between the concentration and rate constant can be written as:
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CHEMISTRY-MOD.MASTERING (18W)
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- For a first order gas phase reaction A products, k = 7.2 104s1 at 660. K and k = 1.7 102s1 at 720. K. If the initial pressure of A is 536 torr at 295C, how long will it take for the pressure of A to decrease to 268 torr?arrow_forwardThe hydrolysis of the sugar sucrose to the sugars glucose and fructose, C12H22O11+H2OC6H12O6+C6H12O6 follows a first-order rate equation for the disappearance of sucrose: Rate =k[C12H22O11] (The products of the reaction, glucose and fructose, have the same molecular formulas but differ in the arrangement of the atoms in their molecules.) (a) In neutral solution, k=2.11011s1 at 27 C and 8.51011s1 at 37 C. Determine the activation energy, the frequency factor, and the rate constant for this equation at 47 C (assuming the kinetics remain consistent with the Arrhenius equation at this temperature). (b) When a solution of sucrose with an initial concentration of 0.150 M reaches equilibrium, the concentration of sucrose is 1.65107M . How long will it take the solution to reach equilibrium at 27 C in the absence of a catalyst? Because the concentration of sucrose at equilibrium is so low, assume that the reaction is irreversible. (c) Why does assuming that the reaction is irreversible simplify the calculation in pan (b)?arrow_forward
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