Which statement best relates an empirical formula with a molecular formula?
we know we will need a balanced equation with masses and molar masses, so let’s gather all the information in one place.
m_r: 127.91 253.81
2hi ⟶ h₂ + i₂
(a) calculate the moles of hi
n = 506 g hi × (1 mol hi/127.91 g hi)
n = 3.955 mol hi
(b) calculate the moles of i₂
the molar ratio is (1 mol i₂/2 mol hi)
n = 3.955 mol hi × (1 mol i₂/2 mol hi)
n = 1.978 mol hi
(c) calculate the mass of i₂
m = 1.978 mol i₂ × (253.81 g i₂/1 mol i₂)
m = 502 g i₂
answer; ///i believe this is the correct ; crest