A gas bottle contains 0.650 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?
A)0)0680 mol
B)0)128 mol
C)0)717 mol
D)0)778 mol

Question

Quizplus · Accepted Answer

To find the moles of gas added, use the ideal gas law relation: P1/n1 = P2/n2. Convert 730 mm Hg to atm (730 mm Hg = 0.9605 atm). Then, solve for n2 using P2 = 1.15 atm. The difference n2 - n1 gives the moles added.

A Gas Bottle Contains 0