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A buffer is prepared by mixing 184 mL of 0.442 M HCl and 0.500 L of 0.400 M sodium acetate
If the final tempurature of the combined water is 42.0 degrees C and the heat capacity of the calorimeter is 26.3 J/degrees C , calculate the mass of the water originally in the calorimeter
Calculate the potential of a hydrogen ( p= 1.02 atm) electrode in an aqueous solution of HBr (0.05 m ) at 298 K A) assuming ideal solute behavior. B) using the Deby- Huckel equation.
a sample of aluminum chloride increased in temperature by 3.5 k when the sample absorbed 167 j of energy. determine the
draw a representation for TPCP that would represent its structure if the phenyls were perpendicular to the 5-membered ring (a paddle-wheel structure) and a representation that represents the propeller structure.
crystallize in a cubic closest packed structure. Use the density of silver (10.5 g/cm3) and its molar mass (107.9 g/mol) to calculate an approximate atomic radius for silver
How many grams of water can be cooled from 34°C to 26°C by the evaporation of 81 g of water? (The heat of vaporization of water in this temperature range is 2.4 kJ/g. The specific heat of water is 4.18 J/g·K.)
If a reaction vessel contains 50.0 of carbon dioxide and 25.0g lithium hydroxide what mass of lithium carbonate can be produced?
Discuss in detail the healthcare applications of chemical reactions. Which chemical reactions would you consider to be of importance to healthcare professionals? Why? In which situations are these chemical reactions useful to healthcare professiona..
A molecule, whose formula is AB, dissolves in water and also conducts electricity. What one statement best describes this molecule after it's placed in water. A)AB exists as a molecule only.
The density of silver is 10.5 g/mL. What is the mass (in grams) of a piece of silver with a volume of 23.6 mL
calculate the mass of ammonium nitrate that should be heated to obtain 100 mL of dinitrogen oxide, N2O, at 1.00 atm and 25 degrees celcius?
Determine which elements are being oxidized and which elements are being reduced in each reaction
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