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Two identical balloons are filled with the same volume, one with air and one with helium. The next day the volume of the air-filled balloon has decreased by 4.5%, by what percent has the volume of the helium-filled balloon decreased? (Assume that the air is four-fifths nitrogen and one-fifth oxigen, and that the temperature did not change?)
Calculate the reaction rate for the reaction CLO2 and OH^- at 0°C. when the initial CLO2 and OH^- concentrations are 8.25 x 10^-3mol/L and 5.35 x 10^-2mol/L, respectively.
One significant breakthrough in the study of the immune system was the development of monoclonal antibodies. State what these are, how they are made
A tank of 10 m3 volume contains an ideal gas (CP=30 J/mol-K) at T=298 K and P=5 bar. If gas from the tank is allowed to flow through a reversible device and exhaust to the atmosphere at P=1 bar.
A) The transfer of electrons from one atom to another produces charges which then interact with each other. B) Bonding occurs through sharing pairs of electrons with adjacent atoms.
Silver metal has a density of 10.5 g/cm3. how many silver atoms are in a cube that measures 5.00cm on each side
The mixture of hot iron and aluminium is dropped into a beaker containing 100 g of water at 15 oC. What is the final temperature of the liquid water
The probability of filling a 3p orbital relative to the 3s orbital is 3/1. Assuming that the total Mg+ population in a given atomization source is 3.5 x 10^18 ions at any given time, what would be the number of ions that are in the excited 3p stat..
How do you derive the work equation for a non-isothermal but reversible reaction using T= Ti - c(V-Vi) and c is a positive constant
Determine the concentrations of K2SO4, K , and SO42- in a solution prepared by dissolving 2.11 × 10-4 g K2SO4 in 2.00 L of water. Express all three concentrations in molarity.
You already have a solution that contains 10 (millimoles) of acetic acid. How many millimoles of acetate (the conjugate base of acetic acid) will you need to add to this solution? The pKa of acetic acid is 4.74.
A mixture of gases contains 5.00 grams of Ne, 5.00 grams of O2, and 5.00 grams of CO2. What is the mole fraction of each gas. What fraction of the total pressure of the gas mix is due to each gas. If the gases are in a 25.0 L container at 25°C, wh..
Explain the order of elution you observed while performing the gas chromatography for this experiment. What property of the product molecules seems to be the most impor- tant in determining relative retention times?
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