For the reaction 2A+B → C, a. The rate was found to be first-order in A...
Reaction 2A + B --> 3C is first order in B and zero order in A. The initial concentrations are 0.250M for A and B and 0.000M for C. The rate constant for a certain temperature is 1.30 x 10-3 s-1. Write down the rate law for this reaction in terms of disappearance of the reactant B. Calculate reaction half-life Calculate the molarity of B after 50.0 sec. Calculate the molarity of product C after 50.0 sec. Calculate molarity of...
2A → B + C The above reaction is run and found to follow first order kinetics with a rate constant of 1.30 x 10-3 sec-1. If the initial concentration of A is 1.73 M, what is the concentration after 133 seconds?
If the rate law for the reaction2A + 3B ? productsis first order in A and second order in B, then the rate law is rate = ________________.a. k [A] [B]b. k [A]2 [B]3c. k [A] [B]2d. k [A]2 [B]e. k [A]2 [B]2
9. The reaction 2A → B is second order with a rate constant of 51.0/M·min at 24°C. (a) Starting with [A]0 = 9.50 × 10−3M, how long will it take for [A]t = 3.10 × 10−3M? ______ min (b) Calculate the half-life of the reaction. _______ min 10. The thermal decomposition of phosphine (PH3) into phosphorus and molecular hydrogen is a first-order reaction: 4PH3(g) → P4(g) + 6H2(g) The half-life of the reaction is 35.0 s at 680°C. a) Calculate...
The rate law for the reaction 2A + B - C is found to be rate = k[A]2. If the concentration of A is decreased by half, what will happen to the rate of the reaction? O a. The rate will double. The rate will decrease by half. The rate will decrease by a factor of 4. O d. This cannot be determined unless we know how [B] changed. The rate will decrease by In(A). b. C. e. a. Which...
The reaction 2A + 3B → C is first order with respect to A and B. When the initial concentrations are [A] 1.55 x 10 2 M and [B] 2.11 × 10-3 M, the rate is 2.65 x 10 4 M. Calculate the rate constant or the reaction. Enter your answer in scientific notation. 10 O M ● M-1 M1.s1
Consider the equation: 2A + B → C The initial rate of reaction is measured at several different concentrations of the reactants with the following results: [A] (M) [B] (M) Initial Rate (M/s) 0.40 0.10 0.026 0.10 0.10 0.026 0.40 0.20 0.103 (blank 1) What is the order with respect to reactant A? (write a number) (blank 2) What is the order with respect to B? (write a number) (blank 3) What is the value of the rate constant. Include...
The reaction 2A B is first order in A with a rate constant of 2.8 x 10-25-2 at 80°C. How long in seconds) will it take for A to decrease from 0.800 M to 0.140 M?
The reaction 2A → B is second order with a rate constant of 51.0/M·min at 24°C. (a) Starting with [A]0 = 9.30 × 10−3 M, how long will it take for [A]t = 2.70 × 10−3 M? (b) Calculate the half-life of the reaction. Answer in Minutes
Part A A+B→2C,ΔH1 1/2A+1/2B→C,ΔH2=? Express your answer in terms of ΔH1. ΔH2 = SubmitMy AnswersGive Up Part B A+1/2B→C,ΔH1 2C→2A+B,ΔH2=? Express your answer in terms of ΔH1. ΔH2 = SubmitMy AnswersGive Up Part C A→2B+2C,ΔH1 2A→4B+4C,ΔH2=? Express your answer in terms of ΔH1. ΔH2 = SubmitMy AnswersGive Up Part D Calculate ΔHrxn for the reaction: Fe2O3(s)+3CO(g)→2Fe(s)+3CO2(g) given these reactions and their ΔH′s: 2Fe(s)+32O2(g)→Fe2O3(s) ΔH=−824.2kJ CO(g)+12O2(g)→CO2(g) ΔH=−282.7kJ ΔHrxn = kJ SubmitMy AnswersGive Up Part E Calculate ΔHrxn for the reaction CaO(s)+CO2(g)→CaCO3(s)...