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A bottle containing 1kg of water 18.01g/mol is boiled until evaporation is complete. Determine w, q, U, H for the process. Hvap = 40.6kJ/mol. Explain when we find the w what temperature we use (room temperature or 100 C)
You dissolve the sample in .550 mL of water and determine that the osmotic pressure of the resulting solution is .107 torr at 35 deg C (760 torr = 1.00 atm). What is the molar mass of the compound?
Explain why the form of the equilibrium constant for a chemical transformation can be predicted from its stoichiometric coefficients whereas
The precipitate, after having been filtered and air-dried, has a mass of .284 g. The limiting reactant in the salt mixture was later determined to be CaCl2x2H2O.
Lead (II) iodide, Pb2, is an ionic compound with a solubility product constant Ksp of 7.9 x 10-9. Calculate the solubility of this compound in
How does viscosity relate to energy dissipation. Is it simply the higher viscosity, the greater energy release
It takes 47.0 to raise the temperature of an 10.6 piece of unknown metal from 13.0 to 24.7. What is the specific heat for the metal?
Calculate the percent composition of each element in the compounds Benzene(C6H6) and Acetylene(C2H2). Since these are different compounds with very different properties, it may seem that this is an exception to the law of definite proportions.
If the heat of combustion for a specific compound is -1100.0 kJ/mol and its molar mass is 75.49 g/mol, how many grams of this compound must you burn to release 390.70 kJ of heat
calculate how many moles of the product form when 0.040mol of K completely reacts. Assume that there is more than enough of the other reactant. 4K(s)+O2(g)?2K2O(s)
Which of the following processes are exothermic. the formation of NaBr from its constituent elements in their standard state the breaking the bond of I2 the sublimation of Li the second ionization energy of Mg None of the above are exothermic
A 335 mL can of soda pop is found to contain 41 g of sucrose. What is the molarity of the solution with respect to sucrose?
Determine the molar concentration of silver nitrate(AgNO3) in a solution if titration of twenty five mili litres of the solution with 0.300M sodium chloride (NaCl) needs 37.05ml of the sodium chloride solution to reach the end point?
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