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Based on the values of the standard reduction potentials, predict what happens when adding and write the relevant equations. copper to a 1 M solution of nitric acid zinc to a 1 M solution copper to a 1 M solution of hydrochloric acid zinc to a 1 M solution of hydrochloric acid copper to a 1 M solution of zinc sulfate zinc to a 1 M solution of copper sulfate
along with the weight of sodium acetate (4.01g) and the volume of acetic acid used (10mL) to prepare the buffer, the expected pH of it was 5.43. What is the expected pH of buffer plus added HCl?
A quantity of ice at 0.0 degrees C was added to 33.6 of water at 21.0 degree C to give water at 0.0 degrees C. How much ice was added?
determined using x rays methods. Remember a, b, c are unit cell dimensions . X', y' and z' are intercepts. Only the information you need is given . You may encounter as unusual rarely formed face
Determine how much heat is evolved or absorbed when 25.0 of lithium iodide completely dissolves in water. Lithium iodide has a lattice energy of -7.3 X 10^2 kJ/mol and a heat of hydration of -793 kJ/mol.
When the compound spontaneously decomposes, the piston moves up, the temperature of the water reaches a maximum of 29.52°C, and then it gradually decreases as the water loses heat to the surrounding air.
In the reaction below, 4.86 atm each of H2 and Cl2 were placed into a 1.00 L flask and allowed to react: H2(g) + Cl2(g) 2 HCl(g) Given that Kc = 89.9, calculate the equilibrium pressure of HCl.
The dipole moment of a compound depends on the resultant partial charges based on the electronegativities of the individual constituents present in the compound. Based on this definition, write the resulting dipole moment in the following compounds
After careful consideration, the student decides to se the method of recrystallization. What should be the characteristics for a good solvent that the student should consider? Identify them by circling those that apply:
A mixture of p-nitroaniline and o-nitroaniline is separated by column chromatography. which compound will be eluted first? Give reason.
Suppose you have made 1L worth of a mixture of methanol and water, by mixing 3 parts of methanol and 2 parts of water by mass. Assume for simplicity that the volume of the mixture is exactly equal to the sum of the volumes of the ingredients
Calculate the equilibrium constant kc for a reaction occuring at a temp 0f -19 degree C and when delta G of 1.6 KJ/mol(use R =8.314 J/mol and 273 for kelvin conversion)
A second sample of this acid weighing 3.00 grams is added to the tirated sample and the pH is 6.60. Calcualte the molar mass of the unknown acid and determine the value of Ka for this acid.
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