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It is found that a gas undergoes a zero-order decomposition reaction in the presence of a nickel catalyst. If the rate constant for this reaction is 8.1 x 10-2 mol/ (l*s), how long will it take for the concentration of the gas to change from an initial concentration of .1M to 1.0 x 10-2 M?
I have been use [A]t = -kt + [A]o
I keep getting [1.0 x 10-2 M] = -8.1 x 10-2 x t + [.1M]
1.0 x 10-2 M / -8.1 x 10-2 - .1M = .02345 Book says the answer is 1.1s, not sure what I am doing wrong.
Following the instruction for the standardization of sodium hydroxide a student took 3.5 gms of KHP (MWt 204.2g/mol) and titrated the solution formed with the given sodium hydroxide solution.
The mass of the displaced fluid is equal to the mass of the object in air, 50.0 g, minus the apparent mass of the object in the fluid, 5.6 g: What is the mass of the displaced water
Consider a solution formed by mixing 61.0 mL of 0.100 M H2SO4, 26.0 mL of 0.100 M HOCl, 25.0 mL of 0.200 M NaOH, 25.0 mL of 0.100 M Ca(OH)2, and 10.0 mL of 0.150 M KOH.
Why does the electron energy threshold of dissociation almost always exceeds the actual dissociation energy in contrast to dissociation, stimulated by vibrational excitation
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A student titrated a .4630g sample of unknown monoprotic acid with 0.1060m NaOH. Using a derivative curve, the student found, the equivalence point volume to be 28.70mL of NaOH
The solute increases the volume of the solution, and an increase in volume requires an increase in the temperature to reach the boiling point (derived from PV = nRT).
RNA Splicing: What is the minimum number of transesterification reactions needed to splice an intron from an mRNA transcript
125 mole of oxygen gas is added to carbon in a .25L container. The mixture equilibriates at 500K. Calculate the equilibrium concentration of carbon monoxide, knowing that K=.086 at 500K.
A gas cylinder that contains argon has an internal volume of 6.88 L. A pressure gauge attached to the cylinder reads 1810 psi
What volume (in mL) of water must be added to a 1.87 M solution of iron(III) chloride to make a 55.9 mL of a 0.71 M solution? Assume the volumes are additive.
Consider the following reaction: 2H2O + 2SO2 2H2 + 3O2 A reaction mixture initially contains 2.8M H2O and 2.6 M SO2.
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