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Citric acid H3C6H5O7 take place in plants. The acid is added to beverages as well as candy. An aqueous solution is 0.710m in citric acid. The density is 1.049g/mL.
a) Compute the molarity, M, of the solution.
b) Compute the wt/wt % of citric acid in the solution.
c) Compute the wt/vol % of citric acid in the solution.
Add the angular wave function for a 2s electron of Carbon to that of a 2py electron of the same carbon atom. Subtract one from the other. In what direction do the functions point? What orbitals are "left" unused on the C atom?
Gallium crystallizes in a primitive cubic unit cell. The length of an edge of this cube is 362 pm. What is the radius of a gallium atom
The heat of fusion of water is 6.01 kJ/mol and the molar heat capacity is 36.6 J/(oK.mol) for ice and 75.3 J/(oK.mol) for liquid water.
After the above reduction is complete, HCl is added to precipitate the crude product. What is the balanced equation showing this reaction. What impurities would be removed from the product upon washing it with ice-cold water
A balloon at a pressure of 755 torr and a volume of 5.00 L. was allowed to rise in the atmosphere to a point at which the pressure inside and outside the balloon was 697 torr. What was the volume of the balloon at that altitude, assuming the tempe..
When 67.7g of calcium and 30.5g of nitrogen undergo a reaction that has a 93.0% yield, what mass of calcium nitride forms
a mixture of 0.47 mole of H2 and 3.59 moles of HCl is heatedto 2800 degrees C. Calculate the equilibrium partial pressures of H2, Cl2,and HCl if the total pressure is 2.00 atm. For the reaction:
How many grams of acetic acid acid, CH3COOH, are required to make 350 mL of an aqueous solution with a pH of 2.40? (Ka = 1.8 x 10^-5 for acetic acid)
When a 19.7 mL sample of a 0.323 M aqueous hydrofluoric acid solution is titrated with a 0.399 M aqueous potassium hydroxide solution, what is the pH at the midpoint in the titration
A solution is prepared by mixing 50.0 mL of 0.50 M Cu(NO3)2 with 50.0 mL of 0.50 M Co(NO3)2. Sodium hydroxide is added to the mixture. Which precipitates first?
What is the density of a block which mass is 50.0 g and is only submerged 40% in bromoform which has a density of 2.890 g/cm^3
Using library resources determine if it is possible to construct a single cell battery that has a cell potential of at least 9 V. You must use realistic concentrations for full credit.
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