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If you had a 0.10 M solution of acetic acid (Ka=1.8X10-5), Citric acid (Ka=1.4X10-4), Lactic acid (Ka=8.7X10-4) and Oxalic acid (Ka=5.9X10-2), Which solution of acid would produce a buffer with the lowest pH? Which solution would be the radio of conjugate base to conjugate acid for a solution of citric acid if the pH of the solution was 3? Would such a solution act as a buffer?
A human piece of pottery is dated 16750 years old by using carbon-14. how many half lives have passed since the pottery was made?
Find the volumes required of Catechol and Ethanol to create a mixture of 50uM Catechol and 50uM Ethanol. Both solutions are 5mM stock
Derive an expression for (dH/dp)T soley in terms of T, p, V. Show that this quantity is identically zero for an ideal gas and find the equivalent expression for a van der Waals gas
describe the unit cell for potassium flouride, copper(I) flouride, and cadmium flouride. How many atoms of each type are in each unit cell?
Emergency treatment of cardiac arrest victims sometimes involves injection of a calcium chloride solution directly into the heart muscle
After 63.0 min, 24.0% of a compound has decomposed. What is the half-life of this reaction assuming first-order kinetics
Phosphorus trichloride gas and chlorine gas react to form phosphorus pentachloride gas. A gas vessel is charged with a mixture of PCl3(g) and Cl2(g)
consider a solution of alno33 in water. awhat ion pairs would be expected to form? write thier formulas b would the
20.00mL of radiator liquid, ethylene glycol has a mass of 20.85 g. What is the density of the liquid?
The reaction of barium metal with liquid water produces 660.2 kJ of heat for every mole of barium that reacts. One of the products is barium hydroxide.
How many atoms are there in 0.663 moles of water?
Draw an energy diagram for the enthalpy of solution of NaCl given that the lattice energy is 773 kJ/mol, the enthalpy of hydration is -769 kJ/mol with an enthalpy of solution equal to 4 kJ/mol.
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