Calculate the pressure in atmospheres exerted by 10.0 moles of hydrogen gas at 293 kelvin if it is stored in a 7.50 liter container. your value should be a decimal number written to three significant figures. given: r = 0.08205 liter · atmosphere/mole · kelvin

Identify the correct relation showing that the radius r of the orbit of a moon of a given planet can be determined from the radius r of the planet, the acceleration of gravity at the surface of the planet, and the time τ required by the moon to complete one full revolution about the planet. determine the acceleration of gravity at the surface of the planet jupiter knowing that r = 71 492 km and that t= 3.551 days and r= 670.9 × 10^3 km for its moon europa.