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Calculate the mass deficiency in amu, binding energy in J/atom, and binding energy in MeV/nucleon for zinc-64, with an actual mass of 63.9291amu
A 0.12M solution of a weak acid HA has pH = 2.49. What is the Ka of this acid.
What is the percent by mass of a solution in which 60. g of NaOH are dissolved in sufficient water to make 100 g of solution.
determine the amount of heat (in kJ) given off when 1.42 * 10^4 g of NO2 is produced according to the following equation : 2 No(g) + o2(g) --> 2NO2(g) H = -114.6kj
Calculate the quantity of work associated with the compression of gas from 5.60 L to 3.40 L at a constant pressure of 1.23 atm.
Calculate the intermolecular collision frequency and the mean free path in a sample of helium gas with a volume of 5.0 L at 27 degrees Celsius and 3.0 atm.
Suppose that the atomic mass unit (amu) had been defined as one-quarter of the average mass of an atom of carbon instead of one-twelfth of the mass of an atom of carbon-12. What would the average atomic mass of aluminum be on this new scale
The specific heat capacity of silver is 0.235 J/g K. Its melting point is 962 C and its enthalpy of fusion is 11.3 kJ/mol. What quantity of heat in joules is required to change 5.00 g of silver from a solid at 25 C to a liquid at 962 C?
How many orbitals correspond to each of the following designations?
A sample of an unknown peptide undergoes a single round of Edman degradation, which liberates ATZ-Gly. Another sample of the peptide is treated with trypsin, and a third sample is treated with chymotrypsin. The table below shows the fragments.
The equilibrium constant at 25°C is 8.9 × 10-12. One hundred grams of magnesium hydroxide is added to 1.00 L of water and equilibrium is established.
At a particular temperature, K = 4.0 x 10^-7 for the reaction N2O4(g) ---> 2NO2(g). In an experiment, 1.0 mol N2O4 is placed in a 10.0L vessel. Calculate the concentrations of N2O4 and NO2 when this reaction reaches equilibrium.
derivatives of butanoic acid, Indicate how a butanoic acid can be converted to an a) acid chloride; b) acid anhydride; c) an ethyl ester, and d) an N-methyl amide
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