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Which of the following processes could theoretically produce the maximun mass of oxygen per gram of metal salt reactant?
A. NaBrO2 --->NaBr + O2B. 2HgO ---> 2Hg + O2C. 4KO2 + 2CO2 ---> 2K2CO3 +3O2D. 2Na2O2 + 2H2SO4 ---> 2H2O + O2E. 2KClO3 ---> 2KCl + 3O2
A container id filled with 4 moles of water and the molar mass of water is 18 grams per mole. What is the mass of the water in the container in grams
To resolve an object in an electron microscope, the wavelength of the electrons must be close to the diameter of the object. What kinetic energy must the electrons have in order to resolve a protein molecule that is 7.00 nm in diameter? Take the m..
The final temperature of the the calorimeter is 24.0 C. What is the specific heat capacity of unknown metal? The specific heat capacity of water is 4.184 J g^-1 C^-1
Calculate the energy change, in J, for 1 gmol of H2O 1) 0 to 100km/h 2) 0 to 100m 3) at 100'C from 0.1 bar to 1 bar 4) at 5bar from 0 to 100'C 5) Dissociating to H2 and O2 at 25'C
Explain the impact of ionic size on the activity coefficient of a species. 1) give the correct trend. 2) give a complete mathematical explanation, 3) give a conceptual explanation.
If your sprinkeling salt on your food that is made of sodium and chloride and someone says thats a inorganic compound why are they correct
use the initial volume of acetic acid the volume of naoh required to reach the equivalence point and the value of the
In an electrolysis cell similar to the one employed in this experiment, a student observed that his unknown metal anode lost 0.238 g while a total volume of 84.90 mL of H2 was being produced.
K a for aspirin (acetylsalicyclic acid) is 3.0 x 10 -4 at 25°C. What is the the acetylsalicylate anion, the conjugate base of aspirin?
At 1 atm, how much energy is required to heat 63.0 g of H2O(s) at -24.0 °C to H2O(g) at 143.0 °C
Enter scientific notation as 1.23E4. (a) When 11.50 mL of 0.470 M HNO3 have been added. (b) When 65.00 mL of 0.470 M HNO3 have been added
When dissolved in your stomach (pH=1) the concentration of aspirin (acetylsalicylic acid Ka = 3.0 x 10 ^-4) is 0.2 M. Calculate the % ionization of the aspirin.
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