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State a balanced reaction that describes how sodium bromide as well as sulfuric acid will produce hydrobromic acid?
Potassium hydroxide is used to precipitate each of the cations from their respective solution. Determine the minimum concentration of {\rm KOH} required for precipitation to begin in each case.
The partial pressure of O2 in the exhaust is 75.19 mmHg and the partial pressure of CO2 in the exhaust is 47.94 mmHg. What is the mole fraction of propane in the fuel stream? (mol C3H8 / mol)
Use the data given to calculate an overall energy change (in kilojoules per mole) for the formation of CsF2 from its elements.
mr. t. rains was given a 50.0 ml sample of 0.150 m solution ofhcooh. using a buret he transferred 25.0 ml of the weak
Give a specific example of an ideal-gas reaction for which the (a) equilibrium position is independent of pressure (b) the equilibrium position is independent of temperature
The equilibrium constant Kc for the decomposition of phosgene, COCl2, is 4.63 x 10^-3 at 527 deg. C
a copper refinery produces a copper ingot weighing 75 kg. the density of the copper is 8.94 gcm3. if the copper is
High-purity benzoic acid (C6H5COOH; ?Hcomb = -3227 kJ/mol) is a combustion standard for calibrating bomb calorimeters. A 1.169 g sample burns in a calorimeter (heat capacity of calorimeter alone = 1365 J/°C) that contains exactly 1.200 kg of water..
a certain monomer used in the production of polymers has one nitrogen atom and the mass composition 67.90 c 5.70 h and
If the specific heat of the salt is 0.663 J/C.g, what is the enthalpy of solution for salt MX if its molar mass is 68.0 g/mol?
What is the theoretical economy of heating A mixture of sodium carbonate and sodium bicarbonate ? sodium carbonate is the desired product and water and carbon dioxide are the undesirable wastes.
Calculate the vapor pressure of a solution containing 25.3g of glycerin C3H8O3 in 125mL of water at 30.0C. The vapor pressure of pure water at this temperature is 31.8torr}
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