The reaction is: A_(violet) + B\" C Another student finds this equation in a boo

Question

The reaction is: A_(violet) + B" C Another student finds this equation in a book, and she thinks it may apply to this reaction. M_initial is the initial concentration of the reactant A (in moles A/Lof solution), t is the time since the reaction start, M_final is the concentration of the reactant at time t, and k is a constant that varies with temperature and the particular reaction. The book does not give a value for k. 1/M_final = kt + 1/M_initial Examine the statements below. Which are components of an effective experimental design to determine if this equation is valid? Assume you need to perform a series of reactions, collecting data. Select ALL statements that describe something that will contribute to an effective experimental design. Unselected statements are understood to be not helpful, and wrong answers count against you. Determine the molar mass of A (assuming A is a solid). Find the value of k in order to set up the experiment. Use ice/heat to maintain temperature as needed in the reaction. Use a stop watch to measure the time until the solution reaches maximum color intensity. Use a stop watch to measure the time required for the solution's color to diminish by a certain amount. Assume that k is zero. Vary M_inital of A with each reaction. Find a way to measure the intensity of the color. Assume that for A, M_initial is zero. Vary the temperature for every reaction.

Explanation / Answer

For verifying the reaction 1/[A] = 1/[A]o+ Kt

A plot of 1/[A] vs t needs to be generared whose slope give rate constant and intercpet 1/[A]0 provided the plot is a straight line.

K is a function of temperature and hence need to be kept constant through out the reaction. Since A is colored substance, monitoring the color will give the concentration of A.    Hence the following are requires

Rest of the data are not required.

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.