Multiple ChoiceA compound contains 57.5% Na and 42.5% S by mass. What is the empirical formula of this compound?39views
Multiple ChoiceWhich of the following represents the empirical formula for the compound with the molecular formula x_4y_8?40views
Multiple ChoiceA compound is found to be 66.6% carbon and 33.4% hydrogen by mass. What is the empirical formula of this compound?44views
Multiple ChoiceA compound is found to contain 53.5% carbon, 15.5% hydrogen, and 31.0% nitrogen by mass. What is the empirical formula of this substance?36views
Multiple ChoiceBased on experimental data showing that copper chloride contains copper and chlorine in a 1:2 molar ratio, what is the empirical formula of copper chloride?33views
Multiple ChoiceA compound contains 50% sulfur and 50% oxygen by mass. What is its empirical formula?44views
Multiple ChoiceWhich statement best describes the relationship between an empirical formula and a molecular formula?36views
Multiple ChoiceWhich pair of formulas represents the empirical formula and the molecular formula of a compound?33views
Multiple ChoicePentose sugars have the molecular formula C5H10O5. What is the empirical formula of pentose?
Multiple ChoiceWhat is the simplest whole-number ratio of atoms in a molecule or formula unit called?48views