Qvault Gen Chem Question

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mardr2b

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6 moles of neon and an unknown amount of chlorine are held at 66atm. The partial pressure exerted by the neon is 36atm. How many moles of chlorine are present?



The partial pressure of the chlorine gas is 30atm. Since the gasses are under the same conditions, the partial pressures exerted are relative to the mole percents.
6 mol/36 atm(30 atm)=5 mol


I just don't see why it's 30 atm?
 
Total pressure = Partial pressure of A + partial pressure of B + partial pressure of C, etc. It's 30atm because the total pressure of neon + chlorine = 66atm. If the partial pressure of neon is 36atm then 66atm - 36atm = 30atm.
 
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