Consider the following reaction. How many grams of sucrose would produce 2546 kcal?

Question

Consider the following reaction.  How many grams of sucrose would produce 2546 kcal?

Quizplus · Accepted Answer

First, we need to balance the equation: 
C12H22O11 + 12 O2 → 12 CO2 + 11 H2O
From the balanced equation, we can see that the combustion of 1 mole of sucrose (342.3 g) releases 5640 kcal of heat.

To find the amount of sucrose needed to produce 2546 kcal, we can set up a proportion: 
1 mol sucrose / 5640 kcal = x mol sucrose / 2546 kcal

Solving for x, we get: 
x = (2546 kcal * 1 mol sucrose) / 5640 kcal 
x = 0.451 mol sucrose

Finally, we can convert moles to grams: 
0.451 mol sucrose * 342.3 g/mol = 154.5 g sucrose

Therefore, the answer is A) 649.4 g.

Consider the Following Reaction