a) Beer: \( \mathrm{pH}=4.9 \) \( \left[\mathrm{H}^{+}\right]=\square \times 10^{\square} \mathrm{M} \) (b) Water: \( \mathrm{pH}=6.8 \) \( \left[\mathrm{H}^{+}\right]=\square \times 10 \square \mathrm{M} \)

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.

a) Beer: \( \mathrm{pH}=4.9 \) \( \left[\mathrm{H}^{+}\right]=\square \times 10^{\square} \mathrm{M} \) (b) Water: \( \mathrm{pH}=6.8 \) \( \left[\mathrm{H}^{+}\right]=\square \times 10 \square \mathrm{M} \)

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 sample of gas is held at 273.15 K and 1 atm . Remembering that there are 22.4 L gas/mol gas at STP, how many moles of gas do you have if you have 18.2 liters of gas?