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The decomposition of N2O5 is a first-order reaction. At 25 C, it takes 5.2 hours for the concentration to drop from 0.140 M to 7.0×10^-2 M.
How many hours does it take for the concentration to drop from 2.8×10^-2 M to 1.4×10^-2 M?
From 0.480 M to 1.5×10^-2M?
at 0.967 atm the height of mercury in a barometer is 0.735 m. if the mercury were replaced with water what height of
A 50.0 mL solution of NH3 was titrated with 0.100 M HNO3. The volume of titrant required to reach the equivalence point was determined to equal 38.25 mL (Kb = 1.8 x 10^-5). what is the pH of the solution after 20.0 mL of HNO3 were added
How many moles of PbI2 are formed? What is the concentration of KNO3? What is the remaining concentration of the reactant that was in excess?
What is the difference between the equatorial positions and the axial positions on the cyclohexane conformations?
The ball travels straight upward. In the absence of air resistance, to what maximum height above the ground does the ball rise
175 g of water was heated from 15 degrees to 88 degrees C. How many kilocalories were absorbed by the water?
calculate the value of kc for the following reaction at 700 c. analysis atnbspequilibrium showed that there are 2.50
From the number if moles of ammonia calculated in part (a - below) determine the number of micrograms of mitrogen per gram of dry soil. Assum you have 2.753 f of soil and all of the ammonia diffused from the soil.
Given that the standard free energy of formation of MCl2(s) and MO2(s) are, respectively, -311.5 and -286.5 kJ/mol at 25o C. What is the standard change in free energy (kJ) for the following reaction
Crystalline solids are well-ordered arrays of atoms or molecules. Crystalline solids may be metallic solids, molecular solids, or ionic solids.
What mass in grams of ethanol is required to (experimentally) produce 100 g of carbon dioxide with an 88.9% yield
Find the temperature capable of expanding 2.500 liters of chlorine at 18.00°C and 0.9000 atm to 5.200 liters. No change in pressure took place.
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