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A solution made by mixing 45.0 ml of 0.360 M propionicacid, CH3CH2COOH, and 10.0 ml of 1.40 M sodiumpropionate, CH3CH2COONa, has a pH of 3.81. Calculate the corresponding value of Ka for propionic acid.
A 84lb child is prescribed 35 mg/kg of tetracycline per day. What volume of a 0.45 g/mL solution of tetracycline should be given to this patient each day? Answer in milliliters.
calculate the number of atoms per cubic meter in aluminum. the density and atomic weight of aluminum are 2.70 gcm3 and
2Al(s) + 2KOH(aq) + 4H2SO4(aq) + 22H2O(l) = 2AlK(SO4)2.12H2O(s) + 3H2(g) How many moles of H gas will evolved when 6 moles of Al react with excess KOH, H2SO4 and water?
The first-order reaction 2N2O(g) --> 2N2(g) + O2(g), what is the concentration of N20 after 3 half-lives if 0.25 mol of N2O is initially placed into a 1.00-L reaction vessel
calculate the concentration of nonelectrolyte solute particlesin human blood if the osmotic pressure is 7.53 atm at37oc
Consider two samples of liquid: one mole of water H2O and one mole of ethanol C2H5OH. The density of water is 1.0 g/mL, and the density of ethanol is 0.785 g/mL. Answer each of the following questions by selecting the correct choice.
Using Linear Combinations of Atomic Orbital-Molecular Orbital Theory, draw the molecular orbital splitting diagram for CN- starting with the atomic orbitals that contain the valence electrons for each atom.
For a formaldehyde and bisulfite reaction, discuss in detail the effect of changing the concentration on reaction rate with respect to each reactant
With a solution in them connected by a liquid salt bridge junction filled with KNO3. In one solution you have a graphite electrode that is connected with a wire to a copper electrode in the second soution. The soution in contact with the graphite ..
Nitric oxide has a density = 1.782 g/L at the temperature of 12.64 degree celsius and pressure of 670.7 mm Hg determine the mass percent of Sulfur dioxide?
Gases W, X, Y, Z obeys van der Waaks equation of states with a and b values are given in liter-atm units. Which gas has the highest critical temperature? Which gas has the largest molecules? Which gas has the most nearly ideal gas behavior at ..
is added to the flask so that the total volume of solid and liquid together is 54.00 . The solid and toluene together weigh 58.58 . The density of toluene at the temperature of the experiment is 0.864
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