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A reaction has a standard free-energy change of -5.21 kJ/mol at 25 °C. What are the concentrations of A, B, and C at equilibrium if, at the beginning of the reaction, their concentrations are 0.30 M, 0.40 M, and 0 M, respectively?
What is the boiling point of a solution produced by adding 510g of cane sugar (molar mass 342.3g/mol ) to 2.1kg of water. For each mole of nonvolatile solute, the boiling point of 1kg of water is raised 0.51 degrees celsius.
If 37.5 mL of 0.274 M HCl solution is needed to neutralize an aqueous solution of calcium hydroxide, how many grams of calcium hydroxide must be in the solution prior to the initiation of the titration experiment
Consider a tire at 35 Celcius filled with 32 psig of O2 instead of N2. Calculate the pressure in the tire at -18 celcius
1. What basic factors are important in analyzing any type of crash?
let us model a pi-electron in a tyrosine by assuming it is a particle trapped in a 2-dimensional square box. as you
A home swimming pool contains 155 m3 of water. At the beginning of the swimming season, the water must be heated from 18 to 32°C. How many joules of heat energy must be supplied
In terms of momentum change, explain why it is best to "give" when catching a baseball. Provide at least TWO other examples of situations
The gas in a piston (defined as the system) is warmed and absorbs 670 J of heat. The expansion performs 347 J of work on the surroundings. What is the Change in internal energy for the system?
describe the coordination geometry e.g. octahedral for each metal ion and the mxnlm formula for deoxy and oxy form of
The trace metal detection test is utilized to detect traces of metal left by carrying a gun in contact with skin. The test requires a 0.20% w/v solution of 8-hydroxyquinoline (C9H7NO) dissolved in isopropanol rubbing alcohol. Require to prepare 25..
Adding magnesium ribbon (about .5g) in a solvent of 100mL of HCl acid in a polysterne cup as my calorimeter. my question is why and how would my calculated anthalpy of reaction be inaccurate if:
you have a solution of sodium nitrate containing 140 g at 65 degrees celcius. how many additional grams of solute must
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