Question:
What is the total mass of products obtained when one gram mole of sucrose is hydrolysed?
What is the total mass of products obtained when one gram mole of sucrose is hydrolysed?
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Hydrolysis adds one water molecule per sucrose, and mass is conserved.
Updated On: Oct 1, 2026
- \(180 \text{g}\)
- \(342 \text{g}\)
- \(170 \text{g}\)
- \(360 \text{g}\)
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The Correct Option is D
Solution and Explanation
Step 1: Understanding the Concept:
Sucrose hydrolyses in the presence of acid or the enzyme invertase to give glucose and fructose: \(\text{C}_{12}\text{H}_{22}\text{O}_{11} + \text{H}_2\text{O} \to \text{C}_6\text{H}_{12}\text{O}_6 + \text{C}_6\text{H}_{12}\text{O}_6\).
Step 2: Key Formula or Approach:
Molar masses: sucrose \(= 342\) g/mol, water \(= 18\) g/mol, glucose \(=\) fructose \(= 180\) g/mol.
Step 3: Detailed Explanation:
Mass of reactants \(= 342 + 18 = 360\) g.
Mass of products \(= 180 + 180 = 360\) g.
So one gram mole of sucrose gives \(360\) g of products in total (one mole of glucose plus one mole of fructose).
The value \(180\) g is the mass of only one of the two products, and \(342\) g is the mass of sucrose alone, which ignores the water added.
Final Answer:
The total mass of the products is \(360\) g, option (D). \[ \boxed{360\ \text{g}} \]
Sucrose hydrolyses in the presence of acid or the enzyme invertase to give glucose and fructose: \(\text{C}_{12}\text{H}_{22}\text{O}_{11} + \text{H}_2\text{O} \to \text{C}_6\text{H}_{12}\text{O}_6 + \text{C}_6\text{H}_{12}\text{O}_6\).
Step 2: Key Formula or Approach:
Molar masses: sucrose \(= 342\) g/mol, water \(= 18\) g/mol, glucose \(=\) fructose \(= 180\) g/mol.
Step 3: Detailed Explanation:
Mass of reactants \(= 342 + 18 = 360\) g.
Mass of products \(= 180 + 180 = 360\) g.
So one gram mole of sucrose gives \(360\) g of products in total (one mole of glucose plus one mole of fructose).
The value \(180\) g is the mass of only one of the two products, and \(342\) g is the mass of sucrose alone, which ignores the water added.
Final Answer:
The total mass of the products is \(360\) g, option (D). \[ \boxed{360\ \text{g}} \]
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