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A certain reaction has delta H^degree = -35.4 kJ and delta S^degree = -85.5 J/K. Use this information to answer the questions below:
1.) Is the reaction exothermic or endothermic?
2.) Does the reaction lead to an increase or decrease in the disorder of the system?
3.) Calculate Delta G^degree for the reaction at 298 K.
4.) Is the reaction spontaneous at 298 K under standard conditions?
The melting point of tropylium bromide is above 200 degree C, quite high for an organic compound. How can you account for these experimental observations?
how can you determine if they are the same without using any form of spectroscopy? explain the physical/chemical reasons why your proposed method would work
What is the pH of a buffer solution made with 20 g of acetic acid and 30 g of sodium acetate in 450 mL of water? (Ka = 1.8 x 10-5). If concentrated HCl is added, will the pH increase or decrease?
When CO2 is bubbled through an ether solution of benzylmagnesium bromide, and the resulting mixture is acidified, phenylacetic acid is produced.
The heat energy required to melt 1.00 g of ice at 0°C is 333 J. If one ice cube has a mass of 62.0 g, and a tray contains 16 ice cubes, what quantity of energy is required to melt a tray of ice cubes to form liquid water at 0°C?
A chemist prepares a sample of hydrogen bromide and finds that it occupies 252 mL at 70C and 464 Torr. What volume would it occupy at 0C at the same pressure.
In which conversion is an oxidizing agent required? a. CH3CH2CH2CH3
calculate the equilibrium constant for the reaction. b. what is the chemical significance of the value of the equilibrium constant?
The structure of HxWO3 could contain H+ ions or OH- ions. Which do you think is more likely? Why?
One beaker contains pure water, another contains salt water, and another contains sugar water. How can you tell the which beaker is Which?
Compute the final temperature of the mixture (assuming no heat loss to the surroundings.)
A 2.00 gram sample of unknown gas is placed into a 296 mL flask at 17°C and found to have a pressure of 717 torr. What is the pressure (in kPa) if the sample is moved into a 200 mL flask at 352K
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