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Solid sodium peroxide (Na202) reacts with liquid water yielding aqueous sodium hydroxide and oxygen gas. How much heat is released when 250.0 L of oxygen gas is produced from the reaction of sodium peroxide and water if the reaction is carried out in an open container at 1.000 atm pressure and 25 degrees Celsius?(Given: delta H of formation[Na2O2 (s)]= -510.9 kJ/mol ;delta H of formation[NaOH (aq)] = -469.2 kJ/ mol ;delta H of formation [H2O(l)] = -285.8 kJ/mol
explain why pure water does not conduct electricity and what happens when a strong electrolyte is dissolved in it
Identify the conjugate base of CH3COOH in the following reaction
A chemist prepares a solution of potassium permanganate by measuring out 33.g of potassium permanganate into a 450ml volumetric flask and filling the flask to the mark with water. Calculate the molarity
What is the concentration of the solution as a mass percentage?
A saturated solution of lead iodate in pure water has a lead ion concentration of 4.0 x 10¯5 mole per liter at 25 °C
the number of moles in .452 grams of naclo4 the number and type of particle in .452 grams of naclo4 is it possible for
Calculate the de Broglie wavelength, in nm, of a baseball of 5.25 ounces with a speed of 97.0 mph
Calculate the entropy and Gibbs energy of mixing when the partition is removed. Assume that the gases are perfect.
Identify the orbitals to which a 4d electron may make an emission transition in the hydrogen atom and determine the dissociation energy of the molecule
An ideal gas is compressed isothermically by a force of 85 newtons acting through .24 meter. Calculate values of delta U and q.
when a antacid tablet dissolves in water the fizz is due to a reaction between sodium hydrogen carbonate nahco3 also
The final temperature of the water and the carbon is 59.02 C. Calculate the specific heat of carbon. The specific heat of water is 4.18 J/g C.
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