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In this discussion we will focus on Associations & Interest Groups.
Calculate the internal energy and enthalpy of 1 kg of air occupying 0.05 m3 at 20 bar. If the internal energy is increased by 120 kJ as the air is compressed to 50 bar, calculate the new volume occupied by 1 kg of the air.
8 ml of the HCl was used to titrate the pK_a 3.8 group; so 2 ml was enough to titrate the rest of the high pK_a group. The upper pK_a group must have begun the experiment as 80% acid form, 20% base form.
Write a balanced net ionic equation that occurs when the slightly soluble salt Mn(OH)2 (s) dissolves in water, forming aqueous ions.B. Calculate the molar solubility of Mn(OH)2 (Ksp = 2.0x10-13) in pure water.
A urine sample was found to have a pH of 5.83. What would be the ratio of the unprotonated form, A, to the protonated form, HA, for uric acid in this urine sample?
A new potential heart medicine, code-named X-281, is being tested by a pharmaceutical company, Pharma-pill. As a research technician at Pharma-pill, you are told that X-281 is a monoprotic weak acid, but because of security concerns, the actual ch..
What volume of 0.200M Iron(II)sulfate solution would be required to react with 20.0mml of 0.250M potassium permangante(in sulfuric acid solution)?
What are the masses in kg of solution A and solution B required, to make 100 kg of a mixture containing 25% ethyl alcohol by mass
Calculate the amount of water required to reduce the temperature of the following samples of metal. Assume that you can use as much water (at 4 ?) as required.
Why do the metals Co, Rh, and Lr form octahedral complexes (rather than tetrahedral or square planar complexes)?
The haber process is a method in which ammonia can be produced from nitrogen gas and hydrogen gas. If nitrogen gas at 200 atm and hydrogen gas at 500 atm are combined at 500?C in a 50.0L vessel: determine the amount of ammonia that would be produc..
Given the reaction at a certain temperature: 2 HI H2 + I2. at equilibrium, the partial pressure of HI is 1.8 x 10^ -3 atm, and the partial pressures for H2 and I2 are 0.10 atm each.
the initial volume of a gas cylinder is 750.0 ml. if the pressure of a gas inside the cylinder changes from 840.0 mmhg
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