To determine the number of moles present in 30g of C12H22O11 (sucrose), we need to use the molar mass of sucrose and apply the formula:
Number of moles = Mass (g) / Molar mass (g/mol)
The molar mass of sucrose (C12H22O11) can be calculated by summing up the atomic masses of its constituent elements:
Molar mass of C12H22O11 = (12.01 g/mol * 12) + (1.01 g/mol * 22) + (16.00 g/mol * 11)
Molar mass of C12H22O11 ≈ 342.30 g/mol
Now, we can calculate the number of moles:
Number of moles = 30g / 342.30 g/mol
Number of moles ≈ 0.0876 mol
Therefore, approximately 0.0876 moles of C12H22O11 are present in 30g of sucrose.