Question

Answer to this question. AP chem

Answer 1

Answer:

Molecular formula = C₄F₈

Explanation:

Given data:

Empirical formula of compound = CF₂

Molar mass of compound = 200.4 g/mol

Molecular formula of compound = ?

Solution:

Formula:

Molecular formula = n ( empirical formula)

n = Molar mass of compound / empirical formula mass

empirical formula mass =  CF₂ = 12+19×2 = 50 g/mol

n = 200.4 g/mol / 50 g/mol

n = 4

Molecular formula = n ( empirical formula)

Molecular formula = 4 ( CF₂)

Molecular formula = C₄F₈