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Answer :

Answer:

1.1 atm

Explanation:

moles of neon =  10.0g /20.2g/mole =.495 mole

moles of ar      =  10.0 g /39.9 g/mole= .251 mole

the partial pressure of each is determined  by their mole fractions of the entire mix

Ne   .495 mole / (.495 + .251 mole)   * 1.6 atm =

      1.1 atm    ( to two significant figures)

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