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Given the reaction NH3 + H2O = NH4 + OH ; Under what conditions might it go to completion in either direction?
gaseous carbon dioxide and liquid water react in the presence of chlorophyll to produce aqueous glucose (c6h12o6 ) and oxygen gas.
magnesium ion solution and another electrode composed of silver in a 1.0 M silver ion solution, connected by a salt bridge. Calculate the standard potential for this cell at 25 °C. Standard reduction potentials
The activation energy for the formation of HCl from its elements: H2 (g) + Cl2 (g) → 2 HCl(g) is 155 kJ mol-1. How much faster will this reaction occur at 200°C versus at 100°C?
One mole of oxygen molecules contains more independent units (O2) than one mole of oxygen atoms (O).
A piece of Al(s) at 94°C is placed in 65g of H2O at 28°C. The Aluminum cools and after equilibrium the final temperature of Aluminum and water is 38°C. What was the mass of the aluminum?
A saturated sodium carbonate solution at 100?C contains 45.5 g of dissolved sodium carbonate per 100. mL of solution. The solubility product constant for sodium carbonate at this temperature is
How the two solutions are properly mixed together? What is the role of the meniscus in this process?
calculate the amount of energy necessary to vaporize 10 g of acetone at its boiling point if the heat of vaporization is 29.1 kJ/mol.
What velocity would an electron 9.11*10^-31 kg need for its de Broglie wavelength to be that of red light 745nm ?
Calculate [H+], pH, [OH-] and pOH in a solution in which lactic acid, HC3H5O3, concentration is 0.250 M and the lactate ion concentration is 0.125 M.
When 25.0 g of ethanol vapor condenses, 23.6 kJ of heat is released. How much heat is required in kJ to vaporize 262 g of ethanol?
An automobile gasoline tank holds 36 kg of gasoline. When the gasoline burns, 95 kg of oxygen is consumed, and carbon dioxide and water are produced.
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