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Hydrogen gas will react with oxygen gas to make steam (gaseous water) at 550 K. I mix 5.0 g of hydrogen and 10.0 g of oxygen in a 2 L flask. After equilibrium is established, there is 4.32 g of oxygen remaining. What is the equilibrium constant for this reaction at 550 K?
What is the airborne radioactivity concentration? Using 10 CFR 20, if the particles are composed of cobalt oxide, how many DAC does this represent?
What is it about the structure of ammonia that will allow it to complex with metal ions whereas the ammonium ion (from ammonium sulfate) will not form complexes
Need to calculate the heat formation of products, but have heat of formation for NaCl of concentration 1mol/L.
Sodium chloride has solubility in water at 100.0°C of 39.1 g sodium chloride per 100 g of water. Calculate the boiling point of a saturated solution of sodium chloride in water.
Determine at what minimum angle relative to the centerline perpendicular to the doorway can someone outside the room hear no sound?
Suppose you pick up a 15-pound ball of iron (such as a "shot-put" ball at a track event). The iron ball has the same temperature as the atmosphere (26 °C). How many joules of heat energy must the iron ball absorb to reach the temperature of your b..
What is the heat change of a 25 g block of iron that starts at a temperature of 22 degrees C and increases to 79 degrees C?
Semiconductors, such as silicon, are the heart of the circuits that form the basis for computers and other electronics. These materials are characterized by a gap in the energy
The answer to formula and calculation, survey of physical chemistry, State all of the assumptions (e.g. ideal gas etc). (previous reaction is 2H??2(g) + O2(g) ----> 2H2O(g))
A student obtains a vinegar solution having an acetic acid concentration of 0.8512 M. What volume of 0.1036 M NaOH will be required to reach the equivalence point when 25.00 mL of the vinegar solution is titrated?
Draw arrows above each of the following covalent bonds to indicate the direction of the dipole-moment in the bond.
Empirical formula Pt(NH3)2Cl3. Sketch at least four isomers which correspond with the given empirical formula and have a molecular mass of 670 g/mol. What are some of these isomers and in a complex ion, can a chlorine atom be bonded to two other a..
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