A student has stored of helium gas over water on a cool day when the temperature in the room reads 20.5°C. If the barometric pressure in the room is 768 mm Hg, what is the pressure of the helium
gas in its container?

Initially, the balloon had 3.0 liters of gas at a pressure of 400 kpa and was at a temperature of 294 k. if the balloon is cooled to 277 k and its volume decreased to 1 l, what will the new pressure in the balloon be?

Determine the percent sulfuric acid by mass of a 1.61 m aqueous solution of h2so4. %

Will give ! what are the advantages and disadvantages of nuclear power? check all that apply. one advantage of nuclear energy is that it does not produce carbon dioxide emissions. storage of nuclear waste is a short-term problem associated with nuclear energy. the problem with uranium mining is that a large quantity of uranium must be extracted to meet energy needs because the energy release from uranium fission is so low. safe operation of a nuclear power plant can be jeopardized by a human mistake.