Question

true or false:
a compound has 4 moles of hydrogen, 2 moles of carbon, and 4 moles of nitrogen. the empirical formula of the compound is
c₂h₄n₄.

a true

b false

Explanation:

Step1: Recall empirical formula rules

The empirical formula is the simplest whole - number ratio of atoms (or moles of atoms) in a compound.
Given moles: C = 2, H = 4, N = 4.

Step2: Check the ratio

To get the empirical formula, we divide each number of moles by the smallest number of moles among them. The smallest number of moles here is 2 (for C).
For C: $\frac{2}{2}=1$
For H: $\frac{4}{2} = 2$
For N: $\frac{4}{2}=2$
So the empirical formula should be $CH_2N_2$, not $C_2H_4N_4$.

Answer:

b. False