Answer the following question(s)that are related to the facts of the problem described below:
0.540 g of bromine combine with 0.858 g of iodine to yield a compound X.
-A compound has the following elemental composition: C= 58.8%, H= 13.8%, N= 27.4%. The empirical formula of this compound is ________.

Question

Quizplus · Accepted Answer

To find the empirical formula, we first need to determine the moles of each element in the compound. From the elemental composition given, we can assume a 100 g sample of this compound, which means we have 58.8 g C, 13.8 g H, and 27.4 g N present.

Moles of C = 58.8 g / 12.011 g/mol = 4.899 mol
Moles of H = 13.8 g / 1.008 g/mol = 13.690 mol
Moles of N = 27.4 g / 14.007 g/mol = 1.955 mol

Next, we can convert the moles to whole number ratios by dividing each by the smallest, which is 1.955.
Moles of C = 2.502
Moles of H = 7
Moles of N = 1

So the empirical formula is C2H7N. None of the answer choices match exactly, but choice C comes closest.

Answer the Following Question(s)that Are Related to the Facts of the Problem