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Using the values from Appendix C, calculate the value of change H degrees for each of the following reactions
(a) 4 HBr (g) + O2 (g) ? 2 H2O (l) + 2 Br2 (l)
(b) 2 Na(OH) (s) + SO3 (g) ? Na2 SO4 (s) + H2O (g)
(c) CH4 (g) + 4 Cl2 (g) ? CCl4 (l) + 4 HCl (g)
(d) Fe2O3 (s) + 6 HCl (g) ? 2 FeCl3 (s) + 3 H2O (g)
Consider the reaction, 2 Al(OH)3 + 3 H2SO4 ->Al2(SO4)3 + 6 H2O. How many grams of Al2(SO4)3 are generated when 152 g of H2SO4 reacts?
Why is The dehydration of cyclohexanol to cyclohexene a traditional experiment to illustrate the acid-catalyzed dehydration of an alcohol to an alkene ?
Using a solution containing 0.302 grams of an antibiotic has an osmotic pressure of 8.34 mmHg At 23.6°C, 0.500 L. calculate its molecular mass.
sample containing 4.80 g O2 of gas has a volume of 15.0 L. Pressure and temperature remain constant. What is the new voume if 0.500 mole O2 gas is added?
which molecule will undergo only London dipersion forces when interacting with other molecules of the same kind?
A 15.0 ml sample of nitric acid solution is titrated with a 0.960 M barium hydroxide until the end point. Based on the titration data, the concentration of nitric acid is determined to be 3.18 M. Calculate the volume in milliliters of barium hydro..
Inorganic phosphorous is spectrophotochemically measured in blood serum by formation of a reduced heteropoly acid (heteropoly blue) and comparison of its absorbance with a standard treated by the same procedure.
undergo an isothermal compression until the pressure of the system is four times the original pressure. The process may occur in two ways:
How much heat does your body lose when 1.5 g of sweat evaporates from your skin at 25 C? (Assume that the sweat is only water.) The heat of vaporization of water at 25 C is 44.0 kJ/mole.
A solution is prepared by mixing 79.0 mL of 5.00 M HCl and 34.0 mL of 8.00 M HNO3. Water is then added until the final volume is 1.00 L. Calculate [H+ ], [OH - ], and the pH for this solution.
The freezing point of an aqueous solution containing 15 g of a nonelectrolyte in 150 mL water is -5.4°C. What is the molecular weight of the compound? Kf = 1.86°C/m for water.
What is the estimated quantity of energy released in the combustion of methanol?
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