Vitamin E is a fat soluble vitamin with the formula C₂₉H₅₀O₂ and a molar mass of 431 g/ mole.How many carbon atoms are in 30.0 mg?

Question

Quizplus · Accepted Answer

First, convert 30.0 mg to grams (0.030 g). Then, calculate moles of Vitamin E: 0.030 g / 431 g/mol = 6.96 × 10^-5 mol. Multiply by Avogadro's number (6.022 × 10^23) to find molecules: 6.96 × 10^-5 mol × 6.022 × 10^23 molecules/mol = 4.19 × 10^19 molecules. Each molecule has 29 carbon atoms, so multiply: 4.19 × 10^19 molecules × 29 carbon atoms/molecule = 12.1 × 10^20 carbon atoms.

Vitamin E Is a Fat Soluble Vitamin with the Formula