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Explain what concentration of Ag is required to precipitate only AgBr in a solution that contains both Br- and Cl- ions at a concentration of .03 M?
Explain how this reaction at equilibrium responds to the addition of heat? Please include any logic for why the reaction is endothermic or exothermic,
CO2 + H2 --> CO + H2O (all are gaseous) At equilibrium the container is found to contain 0.0883 M CO2. What is the equilibrium constant, Kc, for the reaction
At 25 °C only 0.0630 mol of the generic salt AB2 is soluble in 1.00 L of water. What is the Ksp of the salt at 25 °C
Describe the preparation of a 1.50 M, pH 8.0 tris buffer (500 mL) using tris base (MW= 121.1 g/mol) and 3.0 M HCl. pKa of tris is 8.3
what mass of this substance must evaporate in order to freeze 230g of water initially at 16 degrees? the heat of fusion
what is the symbol equation for incomplete combustion of ethane and what is the symbol equation for the complete
What is wrong with measuring the voltage of cell containing only one solute component on each side (Fe[II] of a given molality on one side and Fe [III] with the same molality on the other)
At what temperatures is this reaction spontaneous at standard conditions. Assume that ?H° and ?S° do not depend on temperature.
A mixture of heptane/decane at 1.8 bar, 120?C contains 80% by mol heptane. At what pressure should it be flashed to obtain a stream that is 90% rich in heptane? What are the composition of the liquid and the amounts of the two phases?
With two dice, each numbered 1-6, there are two possible ways to roll a 3: Thus, for the outcome of 3 (a particular macrostate) there are 2 microstates. How many possible ways are there to roll a 6? What is the entropy associated with an outcome o..
We place 1.32 mol PCl5 in a 1.0 L flask and allow it to reach equilibrium at a given temperature. What is the final concentration of Cl2 in the flask?
What is the molecular formula of the compound with empirical; formula C5H8O and molar mass 336.5 g mol-1?
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