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4 KO2(s) + 2 H2O(g) + 4 CO2(g) 4 KHCO3(s) + 3 O2(g)
Solid potassium superoxide, water vapor, and carbon dioxide gas react to form solid potassium bicarbonate and oxygen gas according to the reaction above. This reaction can be utilized in emergency oxygen masks. Exhaled water vapor and carbon dioxide react with potassium superoxide in the mask to produce oxygen. If someone using one of those masks exhales 0.716 g of CO2/min, how many grams of potassium superoxide would be consumed in 12.00 minutes?
In a 1.00 L flask, 3.40 atm of CO reacts with 2.60 atm of O2. Assuming that the temperature remains constant, what is the final pressure in the flask.
during exercise a person breathes in between 100 and 200 L of air er minute. if a person is exercising enough to breathe in an average of
The theoretical yeild of Ni(NH3)6Cl2 moles must be calculated as well as the theoretical yield of Ni(NH3)6Cl2 grams. How do you find the limiting reagent to calculate the theoretical yield.
Iron can be prepared by the reaction of Fe2O3 with carbon according to the equation: 2Fe2O3(s) + 3C(s) 3CO2(g) + 4Fe(s) If 401 g Fe2O3 and 205 g C are heated together, how many grams of iron could be produced?
How many grams of Au are there in the whole ocean? With a 60% recovery possible, how many liters of seawater must be processed for gold to obtain 1 kg of that metal?
A beaker with 185 mL of an acetic acid buffer with a pH of 5.00 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 6.70 mL of a 0.440 M HCl solution to the beaker.
What volume would be occupied by 100 g of oxygen gas at a pressure of 1.50 atm and a temperature for 25° c?
The solute increases the volume of the solution, and an increase in volume requires an increase in the temperature to reach the boiling point (derived from PV = nRT).
At 25 degrees Celsius, the reaction: H3O+ + NH3 --> NH+ + OH- is first order in each reactant, and has a rate constant of 4.3x 10^10 M^-1 s^-1
What is the minimum pressure in kPa that must be applied at 25 °C to obtain pure water by reverse osmosis from water that is 0.156 M in sodium chloride and 0.094 M in magnesium sulfate?
Molybdenum crystallizes in a body-centered cubic lattice (the Mo atoms are at the lattice points only). If the density of the metal is 10.3 g/cm3, what is the unit cell edge length in pm?
the reactants in a Diels-Alder reaction are used in a 1:1 ratio. In this experiment, one reagent is used in excess. Which reagent is in excess, and why is it important that so much of it be used?
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