please answer question 9 and 10 thank you

9) You are designing a warning system for a semiconductor fabrication facility that must have fewer than 1000 oxygen molecules per cm3 to operate successfully at SATP (25C and 1 bar pressure) conditions. While trying to design the system you find out about a sensor that can detect partial pressures of oxygen between 100.0 attobar and 1.000 femptobar. Will this sensor work for this application? Explain your