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Assume that rubbing alcohol of 1.02 grams evaporates from a 70.0 grams of aluminum block. aluminum block is at 25 degree Celsius , initially determine the final temperature of the block after the evaporation of the alcohol?( Assume that the heat required for the vaporization of the alcohol comes only from the aluminum block and that the alcohol vaporizes at 25 degree Celsius). Heat of vaporization of the alcohol = 45.4 kj/mol at 25 0C
Compute the final temperature of the mixture (assuming no heat loss to the surroundings). The heat capacities of H2O(s) and H2O (l) are 2.08 and 4.18 J/g · °C, respectively, enthalpy of fusion for ice = 6.02 kJ/mol.
Determine which gases remain after the reaction goes to completion and calculate their partial pressures. The temperature at the beginnning and the end of the experiment is 22 °C.
Gold has cubic crystals whose unit cell has an edge length of 407.9 pm. The density of the metal is 19.3 g/cm3. Calculate the number of gold atoms in a unit cell. What type of cubi lattice does gold have
What volume of hydrogen gas is produced when 68.4 g of iron reacts completely according to the following reaction at 25 C and 1 atm iron (s) + hydrochloric acid (aq)--------- iron(II) chloride (aq) + hydrogen (g)
Which compound has the smallest molar mass?
A nurse administered 3.50mL of a radioisotope solution that has an activity of 135pCi/mL. What total dose of the radioisotope did the patient receive
What would be your average speed in cm/s?(c) what would be your time (in minutes:seconds) for 1500m? show your work
A sample of natural gas contains 1 mole of gas X, 0.5 mole of gas Y, and 3.5 moles of gas Z. If the partial pressure of gas x is 0.4 atm, what is the partial pressure in atm of gas Z
A piece of pure aluminum is placed in contact with a piece of pure copper. At what temperature should diffusion ooccur for the concentration of copper in aluminum to be 600 kg>m
Calculate the heat lost by the hot water, Calculate the heat gained by the cold water, Calculate the calorimeter constant, using the delta T of the cold water.
A mixture of benzene and styrene is fed at a rate of 100 mol/min to a flash tank operating at 25'C. The flash produces equal flows of gas and liquid, with the liquid phase being 95% pure.
Find the change in entropy (S) for the system, surroundings and universe for the conversion of 1 mol of ice at 0 degrees C and 1.00 atm to 1.0 mol of steam (vapor) at 100 degrees C and 0.50 bar
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