Mini Unit Review

Front

A formula with the lowest whole # ratio of elements in a compound is called

Back

Empirical Formula 

Front

What is the empirical formula for C₄H₆?

Back

C₂H₃

Front

Find the empirical formula for the elements with percentages: 40.05% S and 59.95% O.

Back

SO₃

Front

What is the empirical formula for N₂S₃?

Back

N₂S₃

Front

Given the following: 42.07% Na, 18.89% P, and 39.04% O, determine the empirical formula.

Back

Na₃PO₄

Front

Which pair has the same empirical formula?

Options: NaCrO₄ and Na₂Cr₂O₇

C₂H₄O₂ and C₆H₁₂O₆

C₃H₆O₃ and C₂H₆O₂

CH₄ and C₂H₆

Back

C₂H₄O₂ and C₆H₁₂O₆

Front

A compound consists of 72.2% magnesium and 27.8% nitrogen by mass. What is the empirical formula?

Back

Mg₃N₂

Front

What is the empirical formula for 81.82% carbon and 18.18% hydrogen

Back

C₃H₈

Front

Determine the empirical formula for: 42.07% sodium, 18.89% phosphorus, and 39.04% oxygen. Options: NaPO₂, Na₂PO₃, Na₃PO₄, Na₃PO₃

Back

Na₃PO₄

Front

A sample contains 36.95 g of mercury (Hg) and 13.05 g of chlorine (Cl). What is the empirical formula for this compound?

Back

HgCl₂