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abbygreen
29.07.2019 •
Mathematics
Asample of cigarette smoke contains 2.09% carbon monoxide. the u.s. national ambient air quality standard for co in a 1−hr period is 35 ppm. how many times greater than this standard is the co concentration in cigarette smoke?
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Ответ:
The actual sample, which has 2.09%, can also be written as 0.0209. Then we divide 0.0209 / 3.5 x 10^-5, which gives 597.14. So the sample of cigarette smoke has CO concentration nearly 600 times more than the standard allows.
Ответ:
Was 5 miles east oft car A