A sample (3.585g) contains 1.385g C, 0.345g H, and 1.850g O. The molar mass of the unknown substance is 62.1 g/mol, what is the molecular formula?

Acompound contains c, h, and o atoms. when 1.130 g of the compound is burned in oxygen, 1.064 g co2 and 0.3631 g h2o are produced. what is the empirical formula of this compound?

The bond energy for the van der waals bond between two helium atoms is 7.9×10−4ev. assuming that the average kinetic energy of a helium atom is (3/2)kbt, at what temperature is the average kinetic energy equal to the bond energy between two helium atoms

What are the similarities between compounds and mixtures?