Posted by Dia B on Wednesday, September 12, 2012 at 2:50pm.
The balloon had 1.00g He initially and a radius of 10.0 cm. Calculate the volume of the sphere (V = (4/3)*pi*r^3) and convert 1.00 g He to mols. Use PV = nRT and solve for P (no T is given so assume a convenient number--then use that in all other calculations).
Then 0.25 g He is removed which leaves 0.75g. Convert to mols, use PV = nRT and solve for the new V (use P from the first calculation and T you assumed). Convert V to the new radius. Don't forget that V in PV = nRT is in L but if you use cm for the radius and (4/3)*pi*r^, that V is in cc.
Related Questions
chem - A balloon filled with 22.3 mol helium has a volume of 500. L at 0.0°C...
chem - A balloon filled with 22.3 mol helium has a volume of 500. L at 0.0°C...
Chemistry - How many moles of helium gas are there in a 10-liter balloon, ...
chemistry - A helium-filled balloon of the type used in long-distance flying ...
Chemistry (balloon) - A latex balloon, wall thickness 3.091 x 10-4 m, contains ...
physics 2B - physics 2B---- A toy balloon is filled with helium gas ( He}) at ...
Science HELP! - If a balloon is filled with helium gas of molar mass 4x10^-3, ...
Physics - If a balloon is filled with helium gas of molar mass 4x10^-3, at a ...
CHEM - How many grams of helium must be added to a balloon containing 8.00 g of ...
Chemistry - A latex balloon, wall thickness 3.091 x 10-4 m, contains helium at a...
For Further Reading
