# AP Chemistry

posted by .

Summary of problem

Photosynthesis uses CO2 & H20 to make C6H12O2. If a plant has 99 grams of CO2 & 68 grams of H2O for photosynthesis, what's the balanced equation, the mass of glucose made, & the mass of excess?

• AP Chemistry -

1) balance the equation by making sure you have the same number of carbon, oxygen, and hydrogen atoms on both the reactants and products side.
2) find the limiting reagent the reactant (CO2 or H2O) that produce the least amount of glucose
3) find the difference in the grams of glucose produced from the reactants

• AP Chemistry -

http://www.iun.edu/~cpanhd/C101webnotes/quantchem/limitingreagent.html

• AP Chemistry -

I can't get EXACTLY 68 grams of water; dunno how to change equation without using a fraction.

• AP Chemistry -

Add O2 on the product side and now balance the equation.

CO2 + H20 -> C6H12O2 + O2

## Similar Questions

1. ### Chemistry

mass-mass conversions and mass-mole conversions: what is the difference and how do you do each?
2. ### chemistry

Hi can you help me balance these equations?
3. ### AP Biology

With regards to photosynthesis, if the following problems occurred, how would photosynthesis be affected?
4. ### chemistry

From the following combustion: 1-butanol + oxygen+ carbon dioxide + water. How many grams of carbon dioxide and water are produced when 130.6 grams of 1-butanol is completely burned?
5. ### chemistry

1)The reaction of methane and oxygen yields carbon dioxide gas and water. The unbalanced reaction is as follows: CH4(g) + O2(g)CO2(g) + H2O(g) A. If 0.718 grams of methane are reacted, how many grams of water vapor are produced?
6. ### Chemistry

The combustion reaction of acetylene gas is represented by this equation: 2 C2H2(g) + 5 O2(g) ==> 4 CO2(g) + 2 H2O(g) How many grams of CO2 and grams of H2O are produced when 52.0g C2H2 burns in oxygen?
7. ### Chemistry

The average human requires 120.0 grams of glucose (C6H12O6) per day. How many grams of CO2 ( in the photosynthesis reaction) are required for this amount of glucose?