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Which of the following is the correct formula for the hydrate of copper (ii) sulfate that has 5 waters of hydration per formula unit? A.CuSO4-5H20 B. 5H2O-CuSO4 C. CuSO4(H2O)5 D. CuSO4H10O5
Calculate the change in enthalpy, Delta H. Report your answer in Joules.
Write the reaction for the electrolysis of molten RbCl. Do not include physical states in the reaction. Include balancing coefficients (use only whole numbers).
Write the balanced neutralization reaction between H2SO4 and KOH in aqueous solution. Phases are optional.
Complete the chemical equation that show the release of hydroxide ions as each of the following bases dissolves in water:
The thermal decomposition of acetaldehyde, CH3CHO->CH4+ CO, is a second- order reaction. the following data were obtained at 518 degrees C.
When 4.0 g of sulfur is burnt in excess oxygen, 40 KJ of heat is evolved. What is the enthalpy change for the combustion of sulfur?
Suppose that you have 175 mL of a buffer that is 0.300 M in both benzoic acid (C6H5COOH) and its conjugate base (C6H5COO%u2013). Calculate the maximum volume of 0.250 M HCl
Calculate the vapor pressure of Hg at 86 oC (in atm). Hg(l) ? Hg(g) ?Ho = 61.32 kJ and ?So = 98.83 J/K
The boiling point of a solution containing 10.44 g of an unknown nonelectrolyte in 50.00 g of acetic acid is 159.2°C. What is the molar mass of the solute?
Draw the first mechanistic step( one intermolecular arrow and any subsequent intramolecular arrows needed to finish the mechanistic step) between caffeine and hydrochloric acid.
How many grams of dry NH4Cl needed to be added to 1.50L of a 2.00M solution of ammonia NH3 to prepare a buffer solution that has a pH of 8.60?
the freezing point of the solution is lowered by 5.71 °C. The freezing point and Kf constant for cyclohexane can be found here. Calculate the molar mass of menthol.
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