Question

How many moles are contained in 0.350 g of table sugar (C₁₂H₂₂O₁₁, molar mass 342.3 g/mol)?

a) 0.00102 moles
b) 0.00204 moles
c) 0.00192 moles
d) 0.00162 moles

Answer 1

Therefore, the correct answer is:

a) 0.00102 moles

Answer 2

The number of moles in 0.350 g of table sugar, which has a molar mass of 342.3 g/mol, is calculated by dividing the mass by the molar mass, resulting in 0.00102 moles.

Step-by-step explanation:

To determine the number of moles contained in 0.350 g of table sugar (C₁₂H₂₂O₁₁), we utilize the molar mass of the substance. The molar mass of table sugar (sucrose) is 342.3 g/mol. The amount in moles can be found by dividing the mass of the sugar by its molar mass.

The calculation steps are as follows:

Determine mass of substance (given): 0.350 g of sucrose.

Determine molar mass of substance (given): 342.3 g/mol for sucrose.

Divide the mass of the substance by the molar mass to find the number of moles:

Moles of sucrose = Mass of sucrose / Molar mass of sucrose

= 0.350 g / 342.3 g/mol

= 0.00102 moles

Therefore, the correct answer is a) 0.00102 moles.