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A mouse is placed in a sealed chamber with air at 759.0 torr. This chamber is equipped with enough solid KOH to absorb any CO2 and H2O produced by the mouse. The gas volume in this chamber is measured to be exactly 2.20 L, at the temperature is held constant at 297 K. After two hours the pressure inside the bottle falls to 717.6 torr. What mass of molecular oxygen has the mouse consumed? Enter units.
A compound is 42.9% C, 2.4% H, 16.7% N, and 38.1% O, by mass. Addition of 6.00 grams of this compound to 50.0 ml benzene, C6H6 (d = 0.879 g/mL), lowers the freezing point from 5.53 to 1.37 degrees celsius. What is the molecular formula of this com..
if I have .42N NaOH and the stoiometry between Oxalic acid and Naoh is 1:2 then does that mean i do .42/.5=mol Oxalic acid * vol of titrations = molarity of oxalic acid
According to the following reaction, how many grams of carbon tetrachloride are required for the complete reaction of 21.1 grams of methane (CH4)?
A gas sample heated in a cylinder uses 650kJ of heat. A piston that compresses the gas does 800kJ of work. What is the change in internal energy of the gas during this process
The air we breathe is approximetly 20% oxygen. the reaction for the complete combustion of acetylene is 2C2H2 + 5O2 ------> 4CO2+ 2H2o
The radius of a iron atom is 124 pm. How many iron atoms would have to be laid side by side to span a distance of 1.71 mm?
Using data from thermodynamic quantities at 298.15K, calculate deltaG^degree for the following reactions. Indicate if each reaction is spontaneous at 298K under standard conditions.
A 100.0 mL sample of 0.10 M NH3 is titrated with 0.10 M HNO3. Determine the pH of the solution after the addition of 200.0 mL of KOH. The Kb of NH3 is 1.8 × 10-5.
The density of liquid octane, C8H18, is 0.7025 g/ml. If 1.00 mL of liquid octane is vaporized at 100 degrees Celsius and 725 torr, what volume does the vapor occupy?
Exactly 10.2 mL of water at 31.0 degrees celsius are added to a hot iron skillet. All of the water is converted into steam at 100 celsius. the mass of the pan is 1.05kg and the molar heat capacity of iron is 25.19 J/(molXC).
The free energy change Delta Gt at 500 K is equal to 9.8x10^4 J/mol. Calculate the equilibrium constant at 500 K.
Water Vapor Will react reversibly with methane (CH4) to produce carbon monoxide and hydrogen gas. The equilibrium, with a Kc=0.26, is established at 927 degrees C, in a 0.32L flask which contains 0.26 mol CO, 0.091 mol H2, and 0.041 mol CH4. What ..
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