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Compute the change in entropy of the universe if water vapor of one mol condenses to liquid water at the temperature of 100°C in a thin flask in an ambient laboratory temperature of twenty five degree celsius.
Using calorimetry experiment, how many grams of CaCl are required to cause a burn at 60 degrees celsius in 1000mL of water?
Calculate the hydronium ion concentration and the pH after the addition of 0.25 mL of 0.10 M HCl to each one. What accounts for the difference in the hydronium ion concentrations
Why must you avoid using your hands in handling the magnesium ribbon and the crucible and cover? 2.Why must objects be cooled to room temperature before taking their weights(masses)
(a) molarity of the solution resulting from dissolving 51.8 g of silver nitrate in enough water to give a final volume of 364 mL (b) volume in liters of 0.494 M manganese(II) sulfate that contains 53.1 g of solute
Identify the element of Period 2 which has the following successive ionization energies, in kJ/mol. IE1: 1314, IE2: 3389, IE3: 5298, IE4: 7471, IE5: 10992, IE6: 13329, IE7: 71345, IE8: 84087.
antacids which contain CaCO3 react with stomach acid to the equation . it gives the eq but I cant type it. what is the mass of stomach acid that reacts with 1.00 grams CaCO3 ?
calculate the equilibrium constant (Keq) at 298 K for the reaction below. Use F = 96,500 C/mol for Faraday's constant and R = 8.314 J/(mol K) for the gas constant. 1 Mn2+(aq) + 2 Na(s) 1 Mn(s) + 2 Na+(aq)
what is the correct electron configuration for Cr (chromium). Chose the proper Lewis dot structure for the compound or poliatomic ion: Sulfur Dioxide (SO2).
This reaction is a catalytic hydrogenation that only partially reduces an alkyne. Consider whether the hydrogenation
Assuming that the specific heat of the solution is 4.18 KJ and that the calorimeter itself absorbs a negligible amount of heat, calculate delta H in kilojoules for the reaction K2O+H2O->2KOH
Rank SCl2, PCl3, and SiCl4 in order of increasing ionic character of their bonds. Use polar arrows to indicate the bond polarity of each bond.
Draw the structure of the product that is formed when methyl propanoate undergoes a reaction with an excess
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