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A sample of Oxygen is collected in a 206 mL container over water at 15C, and the barometer reads 793 torr. What volume would the dry gas occupy at 704 torr and 15C? Water's partial pressure at 15C is 12.8 torr. Answer in units of mL.
What is the molarity of a solution that contains 343.0 grams of phosphoric acid, H3PO4, in 2.0 L of solution
How many kilocal are required to increase the temp of 15.6g of iron from 122C to 355C? the specific heat of iron is
Balance the following redox equation using the smallest integers possible and select the correct coefficient for the hydrogen sulfite ion.
Use the ideal gas and the van der Waals equations to calculate the pressure when 3.00 mol of H2 are confined to a volume of 1.00 L at 298 K
Determine the pH of a buffer prepared by mixing 0.675 moles of HC2H3O2 and 0.575 moles of NaC2H3O2 in enough water to give 1.00 liter of solution.
Hydrogen sulfide decomposes according to the following reaction, for which, Kc=9.30 x 10^-8 at 700 degrees C.
If a heated metal block is placed into a beaker of water, what is the relationship between the final temperatures of the water and the metal block?
A tanker carrying 800 kg of BOD waste accidently overturns and spills into a pond with a volume of 100,000,000 L. Assume the pond is completely mixed and has an initial DO of 6.4 mg/L and a temperature of 20°C
Consider the reaction with the rate law, Rate = k[BrO3-][Br-][H+]2 By what factor does the rate change if the concentration of H+ is decreased by a factor of 3
If the enthalpy change for the reaction is 21 kJ/mol, what is the minimum value of the change in entropy for the reaction. Please answer in J/K* mol
Write net ionic equations for each of the precipitation reactions used to identify each of the cations in Group A (Al3+, Fe3+, and Mn2+) and B (Ba2+, Ca2+, and Mg2+).
A machine does 300.0 kJ of work on the environment, and emits 200.0 kJ of heat. What is the change in internal energy of the machine?
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