Question

Question 3 (2 points)

Answer 1

Answer: The mass of water produced is 507.6 g

Explanation:

The number of moles is defined as the ratio of the mass of a substance to its molar mass. The equation used is:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$ ......(1)

Given mass of glucose = 846 g

Molar mass of glucose = 180 g/mol

Plugging values in equation 1:

$\text{Moles of glucose}=\frac{846g}{180g/mol}=4.7 mol$

The given chemical equation follows:

$C_6H_{12}O_6+6O_2\rightarrow 6CO_2+6H_2O+energy$

By the stoichiometry of the reaction:

If 1 mole of glucose produces 6 moles of water

So, 4.7 moles of glucose will produce = $\frac{6}{1}\times 4.7=28.2mol$ of water

Molar mass of water = 18 g/mol

Plugging values in equation 1:

$\text{Mass of water}=(28.2mol\times 18g/mol)=507.6g$

Hence, the mass of water produced is 507.6 g