A gas bottle contains 0.250 mol of gas at 730 mm Hg pressure.If the final pressure is 1.15 atm,how many moles of gas were added to the bottle?

Question

Quizplus · Accepted Answer

To find the moles of gas added, use the ideal gas law relation: P1/n1 = P2/n2. Convert the initial pressure to atm: 730 mm Hg = 0.9605 atm. Then, solve for n2: n2 = (P2 * n1) / P1 = (1.15 atm * 0.250 mol) / 0.9605 atm = 0.2993 mol. The moles added are 0.2993 mol - 0.250 mol = 0.0493 mol.

A Gas Bottle Contains 0