Multiple ChoiceHow many atoms of calcium, phosphorus, and oxygen are present in one formula unit of Ca3(PO4)2?34views
Multiple ChoiceGiven the compound 4Na3PO4, how many atoms of sodium (Na), phosphorus (P), and oxygen (O) are present in total?34views
Multiple ChoiceGiven a sample containing 3.72 g of phosphorus (P) and 21.28 g of chlorine (Cl), what is the empirical formula of the compound formed?29views
Multiple ChoiceWhich of the following is the empirical formula for a compound that is 36.86% nitrogen (N) and 63.14% oxygen (O) by mass?40views
Multiple ChoiceHow many total atoms are present in one formula unit of cobalt hydroxide, Co(OH)_2?26views
Multiple ChoiceHow many oxygen atoms are present in the empirical formula unit of magnesium chlorate?34views
Multiple ChoiceWhich of the following compounds has the same empirical formula as its molecular formula?34views
Multiple ChoiceA compound contains 57.5% Na and 42.5% S by mass. What is the empirical formula of this compound?26views
Multiple ChoiceWhich of the following represents the empirical formula for the compound with the molecular formula x_4y_8?26views