Question

Plants take carbon dioxide (CO2) and water (H2O) from their surroundings and combine these molecules to make glucose(C6H1206) and oxygen (O2). It takes approximately 135 milligrams of glucose to produce one leaf on a tree.b. How many grams of oxygen would be produced by this process?

Answer 1

To solve this question, we will need the reaction that produces glucose:

6CO2 + 6H2O → C6H12O6 + 6O2 (don't forget please to balance it)

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Data:

135 mg of C6H12O6 = one leaf of a tree

We want to calculate the amount of CO2 to get this leaf.

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Procedure:

135 mg = 0.135 g (1000 mg = 1 g)

We also need the molar mass of:

C6H12O6 => 180 g/mol

CO2 => 44 g/mol

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Procedure:

6 x 44 g CO2 --------- 180 g C6H12O6

X --------- 0.135 g

X = 0.135 g x 6 x 44 g/180 g = 0.198 g

0.198 g = 1.98x10^-1 g (scientific notation)

Answer: c. 1.98x10^-1 g