Question

1) Aquatic algae remove huge amounts of carbon dioxide from the atmosphere. These algae live in thesurface regions of the world's oceans. If 1 acre of algae can remove 2.7 tons of carbon dioxide in a singleday, how many moles of carbon dioxide are removed in a year?

Answer 1

They give us the weight of carbon dioxide that removes 1 acre of algae. To determine moles we are going to convert the weight from tons to grams and then divide it by the molar mass of carbon dioxide.

We take in count following:

1ton=1x10^6g

1molCO2=44.01g

1year=365days

So, the moles that 1 acre of algae removes in a year will be:

`molCO_2=2.7(tonCO_2)/(day)*(10^6g)/(1ton)*(1molCO_2)/(44.01gCO_2)*(365day)/(1year)`
`molCO_2=2.2*10^7molCO_2`

Answer: In a year, are removed 2.2 x10^7 moles of carbon dioxide