Question

The reaction between C6H12O6 and O2 is represented by the balanced equation above. In an experiment, 0.30mol of CO2 was produced from the reaction of 0.05mol of C6H12O6 with excess O2. The reaction was repeated at the same temperature and in the same container, but this time 0.60mol of CO2 was produced. Which of the following must be true

Answer 1

Answer:

The true statement is:

A) The initial amount of C6H12O6 in the container must have been 0.10mol

Explanation:

The balanced equation for the reaction between glucose and oxygen is:

$C_{6}H_{12}O_{6}+6O_{2}\longrightarrow6CO_{2}+6H_{2}O\\According\:to\:this\:equation,\:1\:mole\:of\:C_{6}H_{12}O_{6}\:reacts\:to\:give\:6\:moles\:of\:CO_{2}.\\1\:mole\:of\:C_{6}H_{12}O_{6}\longrightarrow6\:moles\:of\:CO_{2}\\0.05\:moles\:of\:C_{6}H_{12}O_{6}\longrightarrow0.3\:moles\:of\:CO_{2}\\0.6\:moles\:of\:CO_{2}\:is\:produced\:\longrightarrow\frac{0.6\times1}{0.6}=0.10\:moles\:of\:C_{6}H_{12}O_{6}$

Hence, 0.6 mol of $CO_{2}$ is produced when 0.1 mol of $C_{6}H_{12}O_{6}$ reacts with excess oxygen.

Since option A is true, option B cannot be true.

Option C is false. 1 mole of glucose reacts with 6 moles of oxygen. 0.1 mol of glucose will react with 0.6 moles of oxygen.

Option D is also false because only 0.6 moles of oxygen will react. The remaining excess oxygen will remain unreacted.