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If you are using 15. mL of 6.0% H2O2 by mass (m/m), and you assume that the density of the solution is 1.0 g/mL and that all of the hydrogen peroxide decomposes according to the reaction:2H2O2(aq) --> 2H2O(l) + O2(g). What is the total umber of moles of (dry) oxygen gas that can be generated? What is the partial pressure of oxygen if the gas is contained in a 250. mL bottle at 25.C?
Nitric oxide, sometimes used in the treatment of lung disease in premature children, is provided to the healthcare professionals as a solution of NO in nitrogen.
2.0 moles of a nonelectrolyte solute are added to 1.0 kg of an unknown solvent. The freezing point is depressed by 7.9 K. Calculate the molal freezing point constant (Kf?) for this solvent.
ethylene glycol c2h6o2 is widely used as an automotive antifreeze. what is the minimum weight in grams of this compound
Heat energy is added to a 352 g block of nickel, and the temperature increases from 21 degrees C to 53 degrees C. If the same amount of heat was added to the same mass of water at the same temperature, what would the water's final temperature be
Calculate the free energy at 25 °C for the nonstandard conditions at point B where the reaction quotient Q is 3.58 x 10^9
the partial pressures of gas A and gas B respectively are 0.298 ATM and .702 atm if 0.130 mol a 3rd gas is added with no change in volume or temperature, what would the total pressure become?
If a buffer solution is 0.260M in a weak base (Kb=5.6x10^-5) and 0.550M in its conjugate acid, what is the pH.
Calculate the volume of CO2gas measured at 756 mm Hg and 23°C given off when 150 kg of limestone (CaCO3) is heated until it decomposes.
The Label on a one pint bottle of water lists the following components. If the density is the same as pure water and you drink 3 bottles of water in one day, how many milligrams of each component will you obtain?
Why is lactose much more soluble in water than in ethanol?
which of the following undergoes substitution by the sn2 mechanism at the fastest rate?a. 1-bromo-2-methylbutaneb.
Calculate the pH of the titration mixture after 10.0, 20.0 and 30.0 mL of base have been added. (the ka for acetic acid is 1.76 x 10^-5).
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