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A student dilutes a solution of 0.100 mol of H3PO4 and 0.150 mol of NaOH with water to a volume of 1.00 L but then realizes that the "distilled water" used was in fact dilute hydrochloric acid.
a)If the pH of the final solution is 6.50, what are the concentrations of H3PO4, H2PO4^-, and HPO4^2-?
b)How many moles of HCl were inadvertently added to the original solution?
The standard cell potential (E°) of a voltaic cell constructed using the cell reaction below is 0.76 V: Zn (s) + 2H+ (aq) ? Zn2+ (aq) + H2 (g) With PH2 = 1.0 atm and [Zn2+] = 1.0 M, the cell potential is 0.42 V. The concentration of H+ in the cath..
At a certain temperature, the half life of SO2Cl2 is 7.5 x 10^2 min. Consider a sealed flask with 122.0 g of SO2Cl2. How long will it take to reduce the amount of SO2Cl2 in the sealed flask to 45.0g?
Suggest a reason why the equilibrium between succinic acid and acetic anhydride lies on the side favoring formation
What mass of sucrose should be combined with 514 g of water to make a solution with an osmotic pressure of 8.85 atm at 295 K? (Assume the density of the solution to be equal to the density of the solvent.)
The following product was produced in high yield during the exact same aldol condensation experiment that was run in lab. It turns out that a certain reaction component was not added to the reaction mixture. Briefly describe the formation of this ..
what is the minimum number of photons you would need to interact with these atoms in order to have all of their electrons promoted to the n = 3 level? What wavelength of light would you need to perform this experiment
As a scuba diver descends under water, the pressure increases. At a total air pressure of 2.70 atm and a temperature of 25.0 *C , what is the solubility of N2 in a diver's blood
The classic volcano reaction is often performed by the simple mix of vinegar (CH3COOH) and sodium bicarbonate (NaHCO3) resulting in a large amount of CO2 foam being produced. How many moles and liters of gas would be produced by reacting 55.7 g of..
A current of 0.010 amp is passed through an aqueous solution of rhodium sulfate salt. The only reaction at the cathode is the deposition of rhodium metal. After 3.0 hours, 0.038g of rhodium metal has been deposited. What is the formula of the rhod..
Each of the following contains ONLY ONE of the two chemicals indicated. what reagent would you use to identify which of the chemicals is present
Problem- Calculate the standard potential of the cell consisting of the Wn / Zn2+ half-cell and the SHE. What will the emf of the call be if : Zn2+ = 0.22 M , PH2 = 1.2 atm and H+ = 1.7 M
Benzene (A) melts at 6 0C and diphenylmethanol (B) melts at 65 0C. The solids are mutually immiscible. There is a eutectic at 1 0C, the eutectic solution being 20 mol % in B, and an unstable compound, AB2,
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