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Plants breathe in carbon dioxide to make sugar through photosynthesis. How much sugar can they create if 200 grams of carbon dioxide are used?

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Answer: 135 grams of sugar.

Step-by-step explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 Liters at STP and contains avogadro's number
6.023* 10^(23) of particles.

To calculate the moles, we use the equation:


\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar mass}}


\text{Number of moles of carbon dioxide=(200g)/(44g/mol)=4.5moles


CO_2 acts as limiting reagent as it limits the formation of product.


6CO_2+6H_2O\rightarrow C_6H_(12)O_6+6O_2

According to stoichiometry:

6 mole of
CO_2 reacts to give 1 mole of sugar

Thus 4.5 moles of
CO_2 will react to give=
(1)/(6)* 4.5=0.75 moles of sugar

Mass of
C_6H_(12)O_6=moles* Molar mass=0.75moles* 180g/mol=135grams

Thus 135 grams of sugar can be created.

User Mervin
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