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How do the following changes affect the value of the equilibrium constant for a gas-phase exothermic reaction:
1. removal of a reactant
A. increase equilibrium constantB. decrease equilibrium constantC. no effect
2. removal of a product
3. decrease in the volume
4. decrease in the temperature
5. addition of catalyst
A solution is made by mixing 12.0 g of NaOH and 75.0 mL of .200 M HNO3. Write a balanced equation for the reaction that occurs between the solutes. Calculate the concentration of each ion remaining in solution. Is the resultant soluiton acidic or ..
Calculate the maximum concentration of fluoride ion that could be present in hard water. Assume the only anion present that will precipitate is the calcium ion. (CaF2(s) Ksp,25C=4.0x10^-11)
Nitrogen and hydrogen gases react to form ammonia gas. N2(g) + 3 H2(g) 2 NH3(g) At a certain temperature and pressure 1.4 L of N2 reacts with 4.2 L of H2. If all the N2 and H2 are consumed, what volume of NH3, at the same temperature and pressure,..
When an ionic solid is added into a solvent, you can see that the ionic solid dissociates into its respective cations and anions. The solvent molecules immediately cluster around the ions.
Calculate the enthalpy change for converting 1.00 mol of ice at -50.0°C to water at 70.0°C in kJ. The specific heats of ice, water, and steam are 2.09 J/g-K, 4.18 J/g-K, and 1.84 J/g-K, respectively. For H2O , Hfus = 6.01 kJ/mol, and Hvap = 40.67..
The electric field at the surface of a charged, solid, copper sphere with radius 0.160m is 3400N/c , directed toward the center of the sphere.
In S8 + 12O2-> 8SO3, if 10 grams of sulfur is used, how many grams of sulfur trioxide are produced?
What is the relationship between the wavelength and the frequency
A piece of metal with a mass of 169 g is placed in a 50 mL graduated cylinder. The water level rises from 20. mL to 38 mL. What is the density of the metal?
Radio wave radiation falls in the wavelength region of 10.0 to 1.00E+3 meters. What is the frequency of Radio wave radiation that has a wavelength of 426 m.
A voltaic cell is constructed with a Mg/Mg2+ (Eo = -2.370 V) half-cell and the Au/Au3+ (Eo = +1.500 V) half-cell. Which statement is correct for the spontaneous reaction
A solution contains 4.56 g of KCl in 175 mL of solution. if the density of the KCl solution is 1.12 g/mL, what are the mass percent (m/m) and moarity (M) for the KCl solution
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