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Explain the dissolution of silver chloride in aqueous ammonia and its reprecipitation in terms of ionic equilibria and solubility product.
The isothermal compressibility of graphite is 1.56 × 10-7 bar-1. At what pressure is density equal to density of diamond?
(a) 0.519 M acetic acid (weak acid with Ka = 1.8e-05). (b) 0.802 M hydrocyanic acid (HCN) (weak acid with Ka = 4.9e-10). (c) 0.693 M pyridine (weak base with Kb = 1.7e-09).
The following processes occur in an internal combustion engine. For which one is the entropy change negative
Calculate the values of the rate constant k assuming that the reaction is first order
A 750-mL sample of hydrogen exerts a pressure of 822 torr at 325 K. What pressure does it exert if the temperature is raised to 475 K at constant volume
Given that 4NH3(g)+5 O2(g)---> 4NO (g)+ 6H2O (g), If 8.2 moles of NH3 React with sufficient oxygen, how many moles of water will be formed?
how many joules of heat are needed to raise the temperature of 591 grams of water from 25C to 55C?
A block of dry ice of dimensions 25 cm x 25 cm x 25 cm is left to sublime in a closed chamber of dimensions 4.00 m x 5.00 m x 3.00 m. The partial pressure of carbon dioxide in this chamber at 25 C will be
a coal-burning power plant generates electrical power at a rate of 500 megawatts that is 500 x 10 to the 6th power pr
When the reaction A--> B + C is studied, a plot of [A]t vs. time gives a straight line with a negative slope. What is the order of the reaction
At constant external pressure (1.2atm), the temperature of 3.25 mol of ideal gas increased from 250K to 305K. Calculate the internal energy change ΔE.
What is the standard potential, E cell, for this galvanic cell? Express your answer to four significant figures and include the appropriate units.
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