A compound containing only tungsten and chlorine is reduced with hydrogen to produce hydrogen chloride gas and 0.2232 g of tungsten metal. Complete reaction of the hydrogen chloride in water requires 46.2 mL of a 0.1051 M sodium hydroxide solution. Determine the empirical formula of the unknown compound.
Caffeine has the chemical formula . What is its empirical formula?
Sodium peroxide has the formula . What is its empirical formula?