A solution of 2.85 g of anhydrous aluminum chloride (AlCl3) in 56.02 g of water freezes at −2.84°C. Calculate the molar mass of AlCl3 from the formula. Calculate the molar mass from the freezing point depression, assuming AlCl3 does not dissociate in ions.

If a hydrogen atom is neutral, it must also have  one electron. an oxygen atom (o) has an atomic number of eight (8). this means a neutral oxygen atom has eight protons and eight electrons. the element actium (ac) has an atomic number of 89, so it has 89 protons and 89 electrons in a neutral atom