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Explain the common ion effect.
Explain the relationship between Ka for an acid and Kb for its conjugate base.
A 23.7-g sample of ethylene glycol, a car radiator coolant, loses 906 J of heat. What was the initial temperature of the ethylene glycol if the final temperature is 32.5 degrees Celsius (c of ethylene glycol=2.42 J/g*K)
In thermodynamics if we are given a reaction that is exothermic is it forever the case that the heat released from the products is the heat gained by the reactants
Briefly discuss the importance of the principles of solubility and miscibility when choosing extraction solvents
Pure solid NaH2PO4 is dissolved in distilled water, making 100.0ml of solution. 10 ml of this solution is diluted to 100.00 ml to prepare the orignal phosphare standard solution.
Ionization energy is the energy needed to eject an electron from an atom. Compute the ionization energy of a hydrogen atom in its first excited stat (n=2)
Nitrogen reacts with hydrogen according to the following equation.
Potassium metal reacts with water to give potassium hydroxide and hydrogen gas. If 50.0mL of hydrogen gas is produced at STP, what is the mass of potassium that reacted
Find the energy of a photon of light if the wavelength of the light wave is 6.88 x 10-7 m.
what is the ratio of acetate to acetic acid in a 0.1 m buffer at ph 4.75?what happens when 5 ml 0.1 m hcl is added to
the equilibrium constant kp for the following reaction is 9.4 at 500.0 degrees c. a mixture in a container at this
Consider a glass of 218 mL of water at 30°C. Calculate the mass of ice at -15°C that must be added to cool the water to 10°C after thermal equilibrium is achieved. To find the mass of water use the density of water = 1.0 g/mL.
Atomic absorption spectrometry was used with the method of standard additions to determine the concentration of cadmium in a sample of an industrial waste stream. For the addition, 5.00 ?L of a 1000.0 ?g/mL
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