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You place ethanol of 100 grams and water of 100 grams in a refrigerator. both are at room temperature Initially,. Determine which of the two liquid samples will cool faster and also explain why this happens.
Calculate the expected change in temperature for 1.7 g of NH NO dissolved in 50.0 2 cal mL of H O. Assume that the calorimeter absorbs no heat. (ie. C =0)(Remember to use dimensional analysis
Acylation of n-propylbenzene gives an unexpected side product. Explain this occurance and give a mechanism.
If 2.50 g CuSO4 are dissolved in 8.0 x 102 mL of 0.25 M NH3, what are the concentrations of Cu2+, Cu(NH3)42+, and NH3 at equilibrium
Determine the magnitude of the partial charges in HBr given that the bond length is 1.41 angstroms and the dipole moment is 0.82 debye.
What is the velocity of a first-order reaction when the reactant concentration is 6 x 10-2 M and the rate constant is 8 x 103 sec-1?
A sample of an unknown gas effuses in 11.9 min. An equal volume of H2 in the same apparatus at the same temperature and pressure effuses in 2.19 min. What is the molar mass of the unknown gas
A room contains 45 kg of air.How many kilowatt-hours of energy are necessary to heat the air in the house from 5 C to 29 C? The heat capacity of air is 1.03 J/ g C.
A solution of I2 was standardized with ascorbic acid. Using a 0.1000-g sample of pure ascorbic acid, 23.52 mL of I2 were required to reach the starch end point.
If 1700 cal of heat is added to a system while the system does work equivalent to 3000 cal by expanding against the surrounding atmosphere, the value of E for the process is
A mixture of 8.0mol of H2 (g) and 4.0mol of O2 (g) is placed in a sealed evacuated container made of a perfect insulating material at 28 degrees C. The mixture is ignited with a spark and it reacts to form liquid water. Find the temperature of the..
Will the parietal pressure of SO3 increase, decrease, or remain the same? Be sure to support your answer with CLEAR calculation.
Will a precipitate of Mg(OH)2 form when 25 mL of 0.010 M NaOH is combined with 75 mL of a 0.10M Solution of magnesium chloride
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