Question

What was the percent of atmospheric co2 in 1850 if it was 280 ppm? move the decimal place 4 digits to the left to get percent (%)?

Answer 1

Answer: 0.028

Step-by-step explanation:

ppm is defined as the mass of the solute present in one million
`10^6` parts by mass of the solution.

percent is defined the the mass of the solute present in hundred parts by mass of the solution.

`ppm=\frac{\text {mass of solute}}{\text {mass of solution}}* 10^6`

Given: Atmospheric
`CO_2` = 280 ppm

`10^6` parts contain 280 parts

100 parts will contain =
`(280)/(10^6)* 100` = 0.028

Thus the percent of atmospheric
`CO_2` is 0.028.

Answer 2

We know that the atmospheric co2 in 1850 was 280 parts per million. Thus we have that the percentage is 280/1 million * 10000 . Thus we have that the percent of atmospheric co2 in 1850 was 2.8%