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Standard XII

Chemistry

Stoichiometric Calculations

How much carb...

Question

How much carbon dioxide will be formed in the reaction when 25 grams of glucose and 40 grams of oxygen are made to react?
Reaction: $C_{6} H_{12} O_{6} + 6 O_{2} \to 6 C O_{2} + 6 H_{2} O$

24.2 g

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48.6 g

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36.7 g

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64.2 g

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Solution

The correct option is C 36.7 g
$C_{6} H_{12} O_{6} + 6 O_{2} \to 6 C O_{2} + 6 H_{2} O$
Moles of oxygen $= \frac{40}{32} = 1.25$ mol
Moles of glucose $= \frac{25}{180} = 0.139$ mol
Finding the limiting reagent:
$For oxygen = \frac{given moles}{stoichiometric coefficient} = \frac{1.25}{6} = 0.208$ $For glucose = \frac{given moles}{stoichiometric coefficient} = \frac{0.139}{1} = 0.139$
Since, the ratio is minimum for glucose, it will be the limiting reagent.
1 mole of glucose produces 6 mol of $C O_{2}$
0.139 mol will produce $= \frac{6}{1} \times 0.139 = 0.834$ mol of $C O_{2}$
Mass of $C O_{2} = 0.834 \times 44 = 36.69 g$

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Similar questions

Q. How much carbon dioxide will be formed in the reaction when 25 grams of glucose and 40 grams of oxygen are made to react?
Reaction:

C_{6} H_{12} O_{6} + 6 O_{2} \to 6 C O_{2} + 6 H_{2} O

Q. In photosynthesis, 6 molecules of carbon dioxide combine with an equal number of water molecules through a complex series of reactions to give a molecule of glucose having a molecular formula

C_{6} H_{12} O_{6}

. How many grams of water would be required to produce 18 g of glucose? Compute the volume of water so consumed assuming the density of water to be

1 g c m^{- 3}

.
Rreaction that takes place during photosynthesis is:

6 C O_{2} + 6 H_{2} O

⟶

C_{6} H_{12} O_{6} + 6 O_{2}

Q. Given this reaction that occurs in plants:

6 C O_{2} + 6 H_{2} O \to C_{6} H_{12} O_{6} + 6 O_{2}

. If 54 grams of water are consumed by the plant, how many grams

C_{6} H_{12} O_{6}

(molar mass = 180) can be made? Assume an unlimited supply of

C O_{2}

3 grams of carbon is burnt completely in 8 gram of Oxygen and 11 gram of carbon dioxide is produced the mass of carbon dioxide formed when 9 gram of carbon burns in 50 gram of oxygen is

Question 27
Which of the following equations is the summary of photosynthesis?

(a) $6 C O_{2} + 12 H_{2} O \to C_{6} H_{12} O_{6} + 6 O_{2} + 6 H_{2} O$
(b) $6 C O_{2} + H_{2} O + S u n l i g h t \to C_{6} H_{12} O_{6} + O_{2} + 6 H_{2} O$
(c) $6 C O_{2} + 12 H_{2} O + C h l o r o p h y l l + S u n l i g h t \to C_{6} H_{12} O_{6} + 6 O_{2} + 6 H_{2} O$
(d) $6 C O_{2} + 12 H_{2} O + C h l o r o p h y l l + S u n l i g h t \to C_{6} H_{12} O_{6} + 6 C O_{2} + 6 H_{2} O$

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Stoichiometric Calculations

Standard XII Chemistry

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How much carbon dioxide will be formed in the reaction when 25 grams of glucose and 40 grams of oxygen are made to react? Reaction: C6H12O6+6O2→6CO2+6H2O

How much carbon dioxide will be formed in the reaction when 25 grams of glucose and 40 grams of oxygen are made to react?
Reaction: $C_{6} H_{12} O_{6} + 6 O_{2} \to 6 C O_{2} + 6 H_{2} O$