Question

100 gms of water react with 200 grams of
carbon dioxide to form how many grams of
carbohydrates?​

Answer 1

Step by Step Answer:

Given: 100gms of water reacts with 200gms of carbon dioxide.

To find: grams of carbohydrate is formed in the reaction

During photosynthesis carbon dioxide and water reacts in the presence of sunlight to form a carbohydrate that is glucose.

If we represent that rection it will be

$6H_{2}O+6CO_{2} ------> C_{6} H_{12}O_{6} + 6O_{2}$

During carbon fixation, a single molecule of carbon is fixed in each cycle, and hence after 6 cycles, the carbon needed for glucose is produced.

In the question, it is given that 200 grams of carbon dioxide react with 100 grams of water.

• Now, we have to convert the grams to moles.  

• we know that the molecular weight of carbon dioxide is 44

so  

              $\frac{200g}{44mol} = 4.5454 mol$

hence we got that 200 grams of carbon dioxide = 4.5454mol

Now there are 4.5454 moles of carbon dioxide, by this, we can produce,

                           $\frac{4.5454}{6} * 1$ moles of glucose

                         = i.e 0.75666 moles of glucose

• now we have to find the mass of the glucose produced hence we have to multiply the moles of glucose by its molar mass.

• the molar mass of glucose is 180.156g/mol

• hence mass of glucose produced will be,

                         $0.7566*180.156$

                         = 136.3 grams

Hence the amount of carbohydrates produced in grams is 136.3

Answer 2

Answer:

Given: 100gms of water reacts with 200gms of carbon dioxide.

To find: grams of carbohydrate is formed in the reaction

During photosynthesis carbon dioxide and water reacts in the presence of sunlight to form a carbohydrate that is glucose.

If we represent that rection it will be

6

�

2

�

+

6

�

�

2

−

−

−

−

−

−

>

�

6

�

12

�

6

+

6

�

2

6H

2

O+6CO

2

−−−−−−>C

6

H

12

O

6

+6O

2

During carbon fixation, a single molecule of carbon is fixed in each cycle, and hence after 6 cycles, the carbon needed for glucose is produced.

In the question, it is given that 200 grams of carbon dioxide react with 100 grams of water.

Now, we have to convert the grams to moles.

we know that the molecular weight of carbon dioxide is 44

so

200

�

44

�

�

�

=

4.5454

�

�

�

44mol

200g

=4.5454mol

hence we got that 200 grams of carbon dioxide = 4.5454mol

Now there are 4.5454 moles of carbon dioxide, by this, we can produce,

4.5454

6

∗

1

6

4.5454

∗1 moles of glucose

= i.e 0.75666 moles of glucose

now we have to find the mass of the glucose produced hence we have to multiply the moles of glucose by its molar mass.

the molar mass of glucose is 180.156g/mol

hence mass of glucose produced will be,

0.7566

∗

180.156

0.7566∗180.156

= 136.3 grams

Hence the amount of carbohydrates produced in grams is 136.3