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In a soda-acid fire extinguisher, concentrated sulfuric acid reacts with hydrogen carbonate to produce carbon dioxide, sodium sulfate and water. How many moles of sodium hydrogen carbonate would beneeded to react with 150.0g of sulfuric acid? How many moles of product would be formed?
How much heat is needed to vaporize 2.42 g of liquid oxygen if the molar heat of vaporization for oxygen is 1,629 cal/mole?
Each was extracted with three 5-mL aliquots of CCl4 containing an excess of 8-hydroxyquinoline. The extracts were diluted to 25 mL and their fluorescence was measured. What is the concentration of the zinc in the unknown solution?
Barium Chloride emits a green color when flame tested. What can be said about the wavelength of light it emits?
Approximately how many grams of KCl are there in 200 mL of a 4.0% by mass KCl aqueous solution? Assume that the density of solution equals that of pure water.
FInd the equation for the radial distribution function for the 4p orbital and calculate the position of the radial node(s) in a0 units.
How many liters of softened water, containing a sodium concentration of 4.7×10-2 % sodium by mass, have to be consumed to exceed the FDA recommendation
copper solid metal and copper sulfate, and of course a salt bridge filled with KCl. What voltage would you expect from this cell at room temperature and 1M ZnSO4 solution but 0.01M CuSO4 solution
Calculate the pH of an HCl solution if 16.5 mL of this HCl solution is titrated with a 0.454 M NaOH and it took 5.65 mL of the NaOH to reach the equivalnce point.
Why is it important to not dilute an initial sample before it hasbeen loaded
If a second-period diatomic molecule has 13 electrons in its valence shell (total of 2s and 2p electrons), what is the predicted bond order of the molecule
Calculate the value of q, w, delta E , for the reversible isothermal expansion at 300k of 2.00 mol of a perfect gas
ammonia undergoes autoionization by the transfer of a proton: 2NH3 NH4+ + NH2-, K = 1×10^-33 at -50°C Since ammonia is better proton acceptor than water, the ionization of acids is relatively enhanced in liquid ammonia. For example, acetic acid i..
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