A compound with the molar mass of 544.0 G/mole is made up 26.5 g carbon 2.94 g hydrogen and 70.6 gss oxygen what is it is a miracle in molecular formula
Answers
Explanation:
Hydrogen, and 70.6 grams of Oxygen. What is its empirical and molecular formula?
Explanation:
you have 26.5g of C, 2.94g of H₂, and 70.6g of O₂. Convert each of these masses to moles by using the gram atomic masses of C, H₂, and O₂.
26.5 g C ₓ 1 mol C/ 12.01 g C = 2.20 mol C
2.94 g H ₓ 1 mol H/ 1.0 g H = 2.94 mol H
70.6 g O ₓ 1 mol O/ 16.0 g O = 4.41 mol O
Now divide all the mol numbers by the smallest mol i.e 2.20
2.20 mol C/ 2.20 = 1 mol C
2.94 mol H/ 2.20 = 1.33 mol H
4.41 mol O/ 2.20 = 2.0 mol O
The compound has the empirical formula CHO₂.
Find out the mass of an empirical formula
12+ 1+ 2 × 16 = 45
Empirical unit = 544/45 = 12
Molecular formula: C₁₂H₁₂O₂₄