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مس What is the half-life of the reaction using 2.5 x 10-5 M as the initial...
React 5.00 mL of 2.00 x 10-5 M crystal violet (CV+) solution with 5.00 mL 2.00 x 10-2 M sodium hydroxide solution. Which reactant is in excess? By how much? What is the concentration of crystal violet immediately after mixing (i.e., before any reaction has taken place)?
What volume (mL) of crystal violet stock solution 2.5 x 10-5M is required to prepare a concentration of 0.00000125 M to a total of 10 mL diluted solution?
2. When the initial (AB2] is 0.255 M, the half-life of the reaction is 13.5 s and when the initial (AB2] is 0.178 M, the half-life of the reaction is 19.3 s. AB2(g) = A(g) + 2B(9) a. Calculate A[B] when [AB2] is 0.525 M. (5 pts) At Answer: b. Would a 1-step mechanism be plausible for this reaction? Why or why not? (5 pts) c. Given that the reaction is exothermic, predict the sign of AS°(universe). Explain your answer....
2. When the initial (AB2) is 0.255 M, the half-life of the reaction is 13.5 s and when the initial (AB2) is 0.178 M, the half-life of the reaction is 19.3 s. AB2(g) = A(g) + 2B(g) a. Calculate 18 when [ABa) is 0.525 M. (5 pts) Answer: b. Would a 1-step mechanism be plausible for this reaction? Why or why not? (5 pts) c. Given that the reaction is exothermic, predict the sign of ASⓇ(universe). Explain your answer. (5...
2. When the initial (AB) is 0.255 M, the half-life of the reaction is 13.5 s and when the initial (AB) is 0.178 M, the half-life of the reaction is 19.3 s. AB (g) = A(g) + 2B(A) a. Calculate on when (AB) is 0.525 M. (5 pts) Answer: b. Would a 1-step mechanism be plausible for this reaction? Why or why not? (5 pts) Given that the reaction is exothermie, predict the sign of AS°(universe). Explain your answer. (5...
2. When the initial (AB2] is 0.255 M, the half-life of the reaction is 13.5 s and when the initial [AB2] is 0.178 M, the half-life of the reaction is 19.3 s. AB2(g) = A(9) + 2B(9) a. Calculate A[B] when [AB] is 0.525 M. (5 pts) ΔΕ Answer: b. Would a 1-step mechanism be plausible for this reaction? Why or why not? (5 pts) c. Given that the reaction is exothermic, predict the sign of ASⓇ(universe). Explain your answer....
What is the half-life (in seconds) of a zero-order reaction which has an initial reactant concentration of 0.984 M with a k value of 5.43 × 10–2 M/s?
The half-life of a reaction,
t1/2, is the time it takes for the reactant concentration [A] to
decrease by half. For example, after one half-life the
concentration falls from the initial concentration [A]0 to [A]0/2,
after a second half-life to [A]0/4, after a third half-life to
[A]0/8, and so on. on. For a first-order reaction, the half-life is
constant. It depends only on the rate constant k and not on the
reactant concentration. It is expressed as t1/2=0.693k For a...
55) The rate constant for a first-order reaction is 0.54 s-1. What is the half-life of this reaction if the initial concentration is 0.33 M? 56) The rate constant for a zero-order reaction is 0.54 s-1. What is the half-life of this reaction if the initial concentration is 0.33 M? 57) The reaction that occurs in a Breathalyzer, a device used to determine the alcohol level in a person's bloodstream, is given below. If the rate of appearance of Cr2(SO4)3...
4) What is the half-life of a second order reaction with the rate constant 0.0271 m 's and the initial concentration 0.902M?