contestada

Calculate the moles of sucrose, C12H22O11, in a 15.0-g sample of this substance.1. 0.0438 moles2. 1.42 moles3. 2.57 moles4. 0.00168 moles5. 6.10 moles

Respuesta :

Answer:

[tex]0.0438\text{ mole}[/tex]

Explanation:

Here, we want to calculate the number of moles of sucrose in the mass of the sample

Mathematically, we have that as:

[tex]\begin{gathered} Number\text{ of moles = }\frac{mass}{molar\text{ mass}} \\ \end{gathered}[/tex]

The mass given is 15g, and the molar mass is 342.3 g/mol

Thus, we have the number of moles as:

[tex]Number\text{ of moles = }\frac{15}{342.3}\text{ = 0.0438 mole}[/tex]