Answer:
To calculate the number of moles of lithium (Li) and fluorine gas (F2) based on the given masses and molar masses, you can use the formula: Number of moles = Mass (g) / Molar mass (g/mol) For lithium (Li): 1. Moles of Li = 619.6 g / 6.94 g/mol 2. Moles of Li ≈ 89.18 mol For fluorine gas (F2): 1. Moles of F2 = 710.6 g / 38.00 g/mol 2. Moles of F2 ≈ 18.7 mol Therefore, there are approximately 89.18 moles of Li and 18.7 moles of F2 based on the given masses and molar masses.
Explanation: