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A particular reactant decomposes with a half-life of 145 s when its initial concentration is 0.389 M. The same reactant decomposes with a half-life of 219 s when its initial concentration is 0.258 M.
Determine the reaction order
Calculate the rate constant
An ionic compound forms when aluminum (Z = 13) reacts with iodine (Z = 53). If a sample of the compound contains 1.23 x 1019 aluminum ions.
Calculate the fraction of methyl isonitrile molecules that have an energy of 160.0 kJ or greater at 510k and 514 k. What is the ratio of the fraction at 514 k to that at 510 k.
Consider the following reaction: 2Mg + O2 --> 2MgO , Rate = k[Mg][O2]^2 Part A What is the overall reaction order? Express your answer as an integer. Part B What are the units of the rate constant k for this reaction?
the pH of a saturated solution of a metal hydroxide MOH is 9.68. calculate the Ksp for the compound
Using Le Chatelier's Principle to predict the effect of a change in conditions on a chemical equilibrium - Predict how the equilibrium of the following reactions will be affected by the changes listed.
A molecule of ethyl alcohol is converted to acetaldehyde in one's body by zero order kinetics. If the concentration of alcohol is 0.018 mol/L and the rate constant
If 4.00 g of the unknown compound contained 0.133 mol of C and 0.267 mol of H, how many moles of oxygen, O, were in the sample?
Explain why butyl alcohol and isopropyl iodide are not formed in the reaction. Write a suitable mechanism for the cleavage of butyl isopropyl ether with HI at 100 degrees C to form exclusively isopropyl alcohol and 1- iodobutane.
calculate the standard enthalpy of reaction C6H6 (I) +3H2 (g)® C6H12 (I) from standard enthalpies of combustion of substances.
What is the molarity (M) of the concentrated HClO4 solution?
The HCl turns the indicator red and the NaOH turns the indicator purple, but what happens to the indicator when the 2 solutions are mixed? Also, is there a temperature increase with the reaction?
As a separation and detection method, would TLC or paper chromatography yield better results in the analysis of each of the following pairs of compounds?
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