Solve for Unknown Variable

What is the volume of a balloon if it contains 3.2 moles of helium at a temperature of 20⁰C and 1.2 atm?

• P

• V

• n

• T

What is the volume of a balloon if it contains 3.2 moles of helium at a temperature of 20⁰C and 1.2 atm?

• P = x (unknown), V = 3.2 mol, n = 1.2 atm, T = 20⁰C K

• P = 1.2 atm, V = 3.2 mol, n = 20⁰C, T = x (unknown)

• P = 293 K, V = 3.2 mol, n = x (unknown), T = 1.2 atm

• P = 1.2 atm, V = x (unknown), n = 3.2 mol, T = 293 K

• Use the stoichiometric coefficients to find the ratio between A and C.

• Use the ideal gas law to find the volume of C.

• Use Avogadro's number to find the number of molecules of C.

• Use the molar mass of C to find its mass.

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NGSS.HS-PS1-7

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NGSS.HS-PS2-1

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NGSS.HS-PS2-4

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NGSS.HS-PS1-7

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NGSS.HS-PS3-2

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NGSS.HS-PS4-1