Hard
Calculate the number of moles present in 90.0 g of glucose (C6H12O6). (Molar mass = 180 g/mol)
Explanation
Explanation
Number of moles = given mass / molar mass = 90.0 g / 180 g/mol = 0.5 mol.
PRO TIP
Re-check your working by substituting the answer back into the original question.