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A balloon with a volume of 5.0 L is filled with a gas at 2 atmospheres. If the pressure is reduced to 1 atmospheres without a change in temperature, what would be the volume of the balloon?
A gaseous oxide of nitrogen has an empirical formula of NO2. A 0.556 g sample of this gas in a 250. mL container at 24ºC exerts a pressure of 44.8 cm Hg. What is the molecular weight of the gas? What is the molecular formula of the gas
A buffer that is 0.210 M in acid, HA, and 0.172 M in the potassium salt of its conjugate base, KA, has a pH of 4.66. What is the pH of the buffer after 150. mL of 0.359 M LiOH is added to 0.950 L of this buffer? Assume that the volumes are additiv..
A balloon contains 400cm3 of helium at 25degrees and 1atm pressure. If the balloon bursts when the volume exceeds 800cm3. What would be the maximum temperature it could withstand at constant pressure?
Use the values of Ka1 = 0.056 and Ka2 = 5.4 x 10-5 to calculate the [OH-] in a 0.898 M solution of oxalic acid (H2C2O4). Use E notation and 3 significant figures.
what is the strongest intermolecular force in a liquid containing molecules
A gas-filled balloon having a volume of 2.00 L at 1.2 atm and 25°C is allowed to rise to the stratosphere (about 30 km above the surface of Earth), where the temperature and pressure are -23°C and 3.00 10-3 atm, respectively. Calculate the final v..
A graduated cylinder contains 152 mL of water. A 14.0 g piece of iron (density = 7.86 rm{g/cm^3}) and a 16.0 g piece of lead are added. What is the new water level in the cylinder?
Problem- would a precipitate of silver acetate form is 22.0 mL of a 0.100 M AgNO3 were added to a 45.0 mL of 0.260 M NaC2H3O? Ksp of AgC2H3O2=2.3x10^-3
Part A: Barium sulfate, BaSO4, is used in medical imaging of the gastrointestinal tract because it is opaque to X rays. A barium sulfate solution, sometimes called a cocktail, is ingested by the patient, whose stomach and intestines can then be vi..
relation between the energy of emitted alpha particles and the half-life for the radioactive decay.
Molecular weight and mole concept explained in this solution, The molecular weight of NaOH is 40. the molecular weight of a widely used buffer, HEPES, is 255
What will happen if all the solids in the nucleophile medium were not dissolved. How might this affect the outcome of the experiment
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