The volume of a balloon filled with \( \mathrm{H}_{2} \) at 275 torr is compressed from 6.40 L to 3.20 L at a constant temperature. What is the final pressure (in atm ) of the the balloon?

The gas in a 225.0 mL piston experiences a change in pressure from 1.35 atm to 2.60 atm. What is the new volume (in mL ) assuming the moles of gas and temperature are held constant?

A sample of argon has a volume of 1.20 L at STP. If the temperature is increased to \( 22.0^{\circ} \mathrm{C} \) and the pressure is lowered to 0.800 atm , what will the new volume be, in L ?

A sewage treatment plant discharges a pollutant with a concentration of \( 6 \mathrm{mg} / \mathrm{L} \). The plant's total discharge is 0.5 MGD (miltions of gallons per day). Determine the rate of pollutant released in pounds pel day. Give your answer accurate to at least two decimal places.

A sewage treatment plant discharges a pollutant with a concentration of \( 6 \mathrm{mg} / \mathrm{L} \). The plant's total discharge is 0.5 MGD (millions of gallons per day). Determine the rate of pollutant released in pounds day. Give your answer accurate to at least two decimal places. Hint: 0.5 MGD is 500,000 gallons per day. Use these conversion factors: \( 1 \mathrm{gal}=3.785 \mathrm{~L}, 1000 \mathrm{mg}=1 \mathrm{~g} \), \( \mathrm{g}=1 \mathrm{~kg} \), and \( 1 \mathrm{~kg}=2.2 \) lbs.

The volume of a balloon filled with \( \mathrm{H}_{2} \) at 275 torr is compressed from 6.40 L to 3.20 L at a constant temperature. What is the final pressure (in atm ) of the the balloon?