chemistry any help please!!?

mj m

New member
When a suspected drunk driver blows 184 mL of his breath through the fuel-cell breathalyzer, the breathalyzer produces an average of 325 mA of current for 10 s.

Assuming a pressure of 1.0atm and a temperature of 25 C, what percent (by volume) of the driver's breath is ethanol?
I am still confused!! help!!!
 
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