need somebody's help.....

[zoz712]

I'm a student in grade 10, and i'm working on a science project.

 

if i have a spherical liquid container made of an elastomer (rubber), can anybody tell me how to determine the thickness of the rubber which is needed to hold the liquid inside......just a general equation:confused:

 

I need it so much....

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this rubber container will carry crude oil inside it and it's made of an elastomer called Viton, only this high quality elasomer can resist the chemical components of the oil.....i want a general equation to determine the thickness of the container to be able to contain the oil according to the weight of the oil (quantity)