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For the reaction A + B +C ? D + E , the initial reaction rate was measured for various initial concentrations of reactants. The following data were collected:
Which of the following mechanisms is/are consistent with the overall reaction and the rate expression?
What is the rate constant at 25.0 °C based on the data collected for trial B? Assume that the relative rate is equal to the actual rate in molar per second.
How to calculate how much elemental Nitrogen is needed for this wastewater given the 100(BOD) to 5(N) ratio?
Explain why you agree or disagree with the following proposals by various energy analysts to help solve U.S. energy problems.
Chemical A has a given specific gravity of 2.8 as compared to water...the MW of Chemical A is given as 435 g/mol.
Is the mixture at equilibrium? If not at equilibrium, in which direction-left to right or right to left- will the reaction occur to reach equilibrium?
A reaction in which A, B, and C react to form products is zero order in A, one half order in B, and second order in C.
An enzyme is a large protein molecule (typically with a molar mass greater than 20,000 AMU) that has a structure capable of catalyzing specific biological.
After applying 2,4-D to turf, an experiment was conducted measuring the concentration of 2,4-D that was present over time.
Why are active on-duty firefighters likely to experience the adverse health effects from inhaling 300 ppm of carbon monoxide.
If a hole was drilled in the top of the tank, how would one calculate the vapor loss at stated pressure and temp?
Butadiene, C4H6, dimerizes to C8H12 with a 1st order rate constant of 0.014 L/mol sec. Starting with 0.025 M
Find the order with respect to A. Find the order with respect to B. Find the order with respect to C.
The zinc-containing enzyme carbonic anhydrase is present in the red blood cells of humans and catalyses the following physiologically important reaction.
The rate constants are at 350K are K1 (350K) =10^3 moles^-1s^-1liter and k-1 (350 K) = 10^5 moles^-1s^-1liter with activation barrier.
This experiment will introduce the concept of homogeneous, heterogeneous, mixtures, solutions, and the colligative property of freezing point.
Consider an electrochemical cell constructed from the following half cells, linked by an external circuit and by a KCl salt bridge:
A NiSO4 solution is electrolyzed using a current of 1.25 A. How many grams of Ni plate out in 25.0 min?
Calculate the molarities of zinc and silver ions after a current of 2.00 amperes flow for 20 hours. Please show step by step and the units you are using.
A first order reaction has a half-life of 157 seconds. How much time is required for the reactant to be reduced to 12.5% of its initial concentration?
In the following reaction, identify the oxidizing and reducing agents.
What is the slope of the ISE response? (This is the same as the coefficient of the log term in the ISE equation). What is the value of E', (also known as k)?
A miniature battery is composed of Zn and a paste of KOH, water, mercury (II) oxide, and mercury. Zinc and potassium hydroxide are consumed.
By the electrolysis of water, 11.2L of oxygen at STP was prepared. If a current of 0.5A was used, how long would it take?