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Cyclobutane decomposes to ethene in a first-order reaction. From measurements of the rate constant (k) at several absolute temperatures (T), the accompanying Arrhenius plot was obtained (ln k versus 1/T).
a. Compute the energy of activation, Ea.
b. Find out the value of the rate constant at 740. K. (In the plot, the units of k are s-1.)
During a Fischer esterification of p-aminobenzoic acid using absolute ethanol and concentrated sulfuric acid, what is the solid that separates when the sulfuric acid is added to the ethanolic solution of p-aminobenzoic acid
A 20.00mL sample of H3Y was titrated with 0.1000 M NaOH. The first equivalence point was reached after the addition of 14.98mL of base. The second equivalence point was reached after the addition of 30.03mL.
an automobile gasoline tank holds 44 of gasoline. when the gasoline burns 154 of oxygen are consumed and carbon dioxide
A solution contains 410.3 g of H2SO4 per litre of solution . If the density is 1.243 g/ml, what will be its molarity and molality.
Barium sulfate, , is used in medical imaging of the gastrointestinal tract because it is opaque to X rays. A barium sulfate solution, sometimes called a cocktail
An electrical heater is used to supply 145.0 J of energy to a 15.0 g sample of water, originally at 300.0 K. Determine the final temperature in degrees Kelvin. (the specific heat capacity for water is 75.291 Jmol-1K-1)
The 2-Methylcyclhexanol used in experiments B and C is actually a mixture of two isomers. What are they. Is it likely that this makes a difference in the product composition
What is the enthalpy change (in kJ) of a chemical reaction that raises the temperature of 250.0 ml of solution having a density of 1.25 g/ml by 1.60°C
A catalyst increases the overall rate of reaction by lowering the activation energy, Ea, for A) both the forward reaction and the reverse reaction. B) neither the forward reaction nor the reverse reaction.
1. for each of the colored solution below consider the region ofthe visible spectrum in which the compound should
When 99% of the glycine is in its -NH3+ form, what is the numerical relation between the pH of the solution and the pKa of the amino group
A pickle is made by soaking a cucumber in brine, a saltwater solution. What makes the smooth cucumber become wrinkled like a prune
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