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One uranium-238 atom has a mass of 238.050785 amu. A) Calculate the mass defect for uranium-238. B) Calculate the binding energy for uranium-238
How much potassium nitrate has to dissolve in water to absorb 114 kJ of heat?
Which of the following intermediates is believed to occur in the mechanism by which alkenes are hydrated in the presence of acid?
If 18.08 grams of ammonia (NH3) react, how many grams of water should theoretically be produced?
A system obtains the amount of heat equal to q > 0 from the surroundings at constant volume. Will the internal energy of the system increase, decrease, or remain constant? Will the temperature of the system increase or decrease
Suppose 1.07 g of FeCl3 is placed in a 75.0 mL volumetric flask, water is added, the mixture is shaken to dissolve the solid, and then water is added to the calibration mark of the flask. Calculate the molarity of each ion present in the solution.
What are the favored geometrical arrangements for ABn molecules for which the "A" atom has 2,3,4,5 and 6 pairs of electrons in its valence shell?
Ethylene, C2H4, and water react under appropriate conditions to give ethanol. The reaction is C2H4(g) + H2O(g) C2H5OH(g) An equilibrium mixture of these gases at a certain temperature
What can you say about the realtive magnitudes of the latice energy of lithium iodide and its heat of hydration?
following hybridization these 4 unpaired electrons can form covalent bonds. In order to promote an s electron to an empty p orbital, energy is required. Is it energetically favourable to promote this electron when bonding? Why or why not
How much dry solute would you take to prepare each of the following solutions from the dry solute and the solvent?
In this experiment a hot metal block at 100oC is added to cold water in a calorimeter. The heat lost by the metal block equals the heat gained by the water and the two end up at the same temperature.
How many milliliters of 0.200 M NaOH will be required to titrate 19.6 mL of 0.479 M H2SO4
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