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A gas of unknown identity diffuses at a rate of 83.3 mL/s in a diffusion apparatus in which carbon dioxide diffuses at the rate of 102 mL/s. Calculate the molecular mass of the unknown gas.
Please breakdown the process of finding the answer
Starting with 3.30 moles of HBr in a 12.0 L reaction vessel, calculate the concentration of H2, Br2, and HBr at equil.
What is the change in the chemical potential of the liquid. as a function of change in temperature assuming the entropy near the boiling point is constant
The pH at one-half of the equivalence point in a weak acid-strong base titration
explain the formation of line spectrum in the balmer series of hydrogen atom. if the emitted photon has a wavelength of
Calculate kinetic energy of a 2 ton truck lumbering along at 60 mi/hr.
When is the ozone concentration normal and when is it at its lowest? Explain why and describe any trends observed for the lowest annual concentrations observed.
A 2.15 g sample of white solid was vaporized in a 345 mL vessel. If the vapor has a pressure of 985 mmHg at 134°C, what is the molecular weight of the solid
The sodium hydroxide solution was prepared by dissolving 10.00 g of solid NaOH in sufficient water to form 200.00 mL of solution. If the equivalence point was reached after the addition of 23.50 mL of the NaOH solution, what is the molarity of HNO..
A long solenoid that has 1,150 turns uniformly distributed over a length of 0.380 m produces a magnetic field of magnitude 1.00 10-4 T at its center. Explain what current is required in the windings for that to occur
Assuming a quantum requirement for photosynthesis of 8 (8 photons), calculate a thermodynamic efficiency in percent under standard conditions for the conversion of carbon dioxide to 3-phosphogylcerate if the wavelength of light used in 400 nm.
Question- A sample of I-131 has activity of 30 mCi. Its half-life is 8.08 days. Calculate activity at end of 20 days.
1.i need to prepare a solution of 0.2 l 0.4 m then determine how many cm3 of a solution of h2so4 sulfuric acid 80.0
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