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The following acid-base reaction is performed in a constant pressure calorimeter. H+ (aq) + OH-(aq) ? H2O (l) ?H=-57. 32 kJ/mol The temperature of 1000.0 g of water rises from an initial temperature of 24.5 °C to a final temperature of X °C when 1 mole of H+ reacts with an excess of OH- within the calorimeter. The specific heat of water is 4.18 J/g·°C. Assume the heat capacity of the calorimeter is negligible. Calculate X, the final temperature or the water
Draw the structures of the products of the neutralization reaction between pyridine and propanoic acid.
Name each of the following species for the following acid-base reactions. (The equilibrium lies to the right in each case, i.e., the product side is favored. If the species is an ion, include the word "ion" in the name.
When an aqueous NaCl solution is electrolyzed, how many faradays need to be transfered at the anode to release .100 mol of Cl2 gas
An industrial freezer is maintained at -26 oC with a vapor compression refrigeration unit using R-134a (HFC-134a) as the working fluid. A throttle is used in the refrigeration cycle and the compressor is 80% efficient.
The nitrogen in a 4-tablet sample that weighed a total of 7.50 g was converted to ammonia by Kjeldahl digestion, followed by distillation into 100.0 mL of 0.1750 M HCl. The analysis was completed by titrating the excess acid with 11.37 mL of 0.108..
A solution of 0.2113 g of water dissolves in 25.0 g of a solvent which freezes at 11.5 EC below the freezing point for the pure solvent. What is the Kf value for this solvent?
Consider a particle of mass m in a uniform gravitational field. Its potential energy is E(h) = mgh,where h is the height above sea level and g is the earth's gravitational constant, g = 9:8 m/s2.
You identified your unknown compound. How you could use this compound to determine the Kf value for ethyl alcohol? Explain what you would do experimentally.
Calculate the molarity of each of the following solutions: (a) 29.0 g of ethanol (C2H5OH) in 545 mL of solution, (b) 15.4 g of sucrose (C12H22O11) in 74.0 mL of solution, (c) 9.00 g of sodium chloride (NaCl) in 86.4 mL of solution.
Using the value of Ksp for Agl, and Kf= 1.7 * 10^7 for Ag(NH3)2+1, calculate the molar solubility of Agl in 1.10 M ammonia (NH3) solution.
Using the periodic table, arrange the atoms in each of the following sets in order of increasing electronegativity: a) CL, F, Br; b) B, O, N; c) Mg, F, S
When hydrochloric acid reacts with magnesium metal, hydrogen gas and aqueous magnesium chloride are formed.
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