Mole Ratio Warm-up

A sample of C₁₀H₁₀Fe contains 3.08 moles of C. How many moles of C₁₀H₁₀Fe are present?

A sample of C₆H₁₄O₃ contains 85.5 grams of C₆H₁₄O₃. How many moles of O are present?