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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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tomochita tomochita
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11 years ago
Green plants use light from the Sun to drive photosynthesis. Photosynthesis is a chemical reaction in which water  (H2O) and carbon dioxide (CO2) chemically react to form the simple sugar glucose (C6H12O6) and oxygen gas (O2).

What mass of oxygen gas is produced by the reaction of 3.04 of carbon dioxide?

Round your answer to 3 significant digits.

An explanation of how to solve this problem would be appreciated!
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#1
11 years ago
Balanced equation:   6CO2 +  6H2O  =   C6H12O6  +   6O2

Assuming this is 3.04 g CO2
molar mass CO2 = 12 + 16*2= 44 g/mole

moles CO2 = 3.04 g/(44g/mole)=0.0691 mole

From balanced equation 1:1 mole ratio for CO2 to O2 so moles O2 = moles CO2

molar mass O2 = 32g/mole

0.0691 mole(32g/mole) = 2.21 g O2
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