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Chemistry

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A helium balloon contains 0.54g of helium.
Given the molecular weight of helium is 4.0 g/mol, how many moles of helium does it contain?

  • Chemistry -

    4.0 g/1mole = .54 g/x mole

    This is a proportion.
    Cross multiply to find the answer

  • Chemistry -

    0.135molHe

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