A certain compound is found to contain 1.45 g of Na, 2.05 g of S and 1.5 g of O. Its empirical formula is ________.

Question

Quizplus · Accepted Answer

The empirical formula of a compound represents the simplest whole-number ratio of the atoms of each element in the compound. To determine the empirical formula, we need to find the moles of each element present in the compound.Moles of Na = 1.45 g / 22.99 g/mol = 0.063 molMoles of S = 2.05 g / 32.06 g/mol = 0.064 molMoles of O = 1.5 g / 16.00 g/mol = 0.094 molThe ratio of the moles of each element is:Na : S : O = 0.063 : 0.064 : 0.094= 2 : 2 : 3Therefore, the empirical formula of the compound is Na₂S₂O₃.

A Certain Compound Is Found to Contain 1