The isomerization reaction, CH3NC → CH3CN, is first order and the rate constant is equal to 0.46 s-1 at 600 K. What is the concentration of CH3NC after 0.20 minutes if the initial concentration is 0.10 M?
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If the units for rate are M s-1, what are the units for the…
If the units for rate are M s-1, what are the units for the rate constant, k, if the overall order of the reaction is three?
Arrows in the energy diagram below represent enthalpy change…
Arrows in the energy diagram below represent enthalpy changes occurring in the endothermic formation of a solution: ΔHsoln = enthalpy of solution ΔHsolute-solute = enthalpy change involving solute-solute interactions ΔHsolute-solvent = enthalpy change involving solute-solvent interactions ΔHsolvent-solvent = enthalpy change involving solvent-solvent interactionsWhich arrow represents ΔHsoln?
Aqueous solutions of 30% (by weight) hydrogen peroxide, H2O2…
Aqueous solutions of 30% (by weight) hydrogen peroxide, H2O2, are used to oxidize metals or organic molecules in chemical reactions. Given that the density of the solution is 1.11 g/mL, calculate the molarity.
The following diagram shows a close-up view of the vapor pre…
The following diagram shows a close-up view of the vapor pressure curves for a pure solvent and a solution containing a nonvolatile solute dissolved in this solvent. Which curve is the solvent and what happens to the vapor pressure when the solute is dissolved in the solvent?
An aqueous CsCl solution is 8.00 wt% CsCl and has a density…
An aqueous CsCl solution is 8.00 wt% CsCl and has a density of 1.0643 g/mL at 20°C. What is the boiling point of this solution? Kb = 0.51°C/m for water.
The slowest step in a reaction mechanism is called the _____…
The slowest step in a reaction mechanism is called the ________ step.
Stainless steel is an example of a ________ solution.
Stainless steel is an example of a ________ solution.
Acetaldehyde decomposes at 750 K: CH3CHO → CO + CH4. The rea…
Acetaldehyde decomposes at 750 K: CH3CHO → CO + CH4. The reaction is first order in acetaldehyde and the half-life of the reaction is found to be 530 seconds. What is the rate constant for the reaction at this temperature?
A KCl solution is prepared by dissolving 40.0 g KCl in 250.0…
A KCl solution is prepared by dissolving 40.0 g KCl in 250.0 g of water at 25°C. What is the vapor pressure of the solution if the vapor pressure of water at 25°C is 23.76 mm Hg?