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Consider a saturated aqueous solution of barium oxalate Ba(C2O4) while the solution is buffered at pH 3.0. The solubility product, Ksp for Ba(C2O4) is 1.0 x 10-6, the acid dissociation constants, Ka1 and Ka2, for oxalic acid, H2C2O4 are 5.6 x 10-2 and 5.4 x 10-5, respectively as well as the autoprotolysis constant for H2O, Kw is 1.0 x 10-14.
A student dissolves 7.39 g of and unknown protein in 0.286 l of water at 300k. She measures the osmotic pressure to be 3.932 x 10^-3 ATM.
For the reaction between H2 and NO in the gaseous state, experiments showed the following results: When the initial concentration of hydrogen doubled (keep [NO]0 the same), the initial rate of reaction doubled
Identify all of the substances that are used or produced in this experiment A5. Distinguish between elements and compounds.
It is known that N2O is a linear molecule, but assume it is not known whether the structure is N-N-O or N-O-N. Use the IR data to decide between the two structures. What Vibrations can be assigned to the strong absorbtion bands? What are the possi..
Find the equilibrium pH of a 10^-3 M NaCN solution by using graphical methods, try to find the equilibrium pH with the charge balance and separately with the proton condition.
Explain how do you write a balanced chemical equation for phosphoric acid reacting with solid aluminum hydroxide forming solid aluminum phosphate as well as water and show what state each substance is in.
As you can imagine, there will be many other elements and compounds present in the solution. How would you best determine the concentration of the analytes in the presence of the other elements and compounds
product has small amount of side products. C. product was not dried completely before taking the melting point. D. product was very cold when the student started taking the melting point. E. product was not recrystallized successfully.
The molarity of Ca2+ in a saturated solution of CaCO3 was determined to be 0.0000616 M. Calculate the solubility product constant (Ksp) for CaCO3. CaCO3 (s) Ca2+ (aq) + CO32- (aq) Molar Mass (g/mol) CaCO3 100.09
calculate mass of KHC8H4O4 (molar mass = 204.44 g/mol) that reacts with 15 ml of the NaOH solution
the heat of vaporization of water is 40.66 kjmol. assuming sweat is 100 water how much heat is removed from your body
Nitrogen is contained in a 300 ml vessel at 400 mm Hg and 10°C. How many grams of nitrogen are in the vessel?
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