We’re being asked to determine the empirical formula of a compound composed of S and N, given the mass percent of S and N.
Recall that the empirical formula is the simplest whole-number ratio formula of a compound.
For this problem, we need to do the following steps:
Step 1: Calculate the mass and moles of S and N in the compound.
Step 2: Determine the lowest whole number ratio of S and N to get the empirical formula.
Under special conditions, sulfur reacts with anhydrous liquid ammonia to form a binary compound of sulfur and nitrogen. The compound is found to consist of 69.6% S and 30.4% N. Measurements of its molecular mass yield a value of 184.3 g mol-1. The compound occasionally detonates on being struck or when heated rapidly. The sulfur and nitrogen atoms of the molecule are joined in a ring. All the bonds in the ring are of the same length.
Calculate an empirical formula for the substance.
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