K- percent composition lab-lab data sheet percent composition of sodium carbonate.docx.pdf

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Name:_____________________________________Period:_______Prelab: _____/15Safety: _____/4Lab:_____/81DataA.Mass of foil dish and sodium bicarbonate sample (NaHCO3)(6 points)B.Mass of foil dish(6 points)C.Mass of sodium bicarbonate sample(NaHCO3)(6 points)D.Mass of foil dish and sodium carbonate (Na2CO3)(6 points)E.Mass of sodium carbonate (Na2CO3)(6 points)Post Lab Calculations and Questions(you must show all work for your calculations in order to receive full credit)1.What is the name ofNa2CO3? _______________________________________________(6 points)2.Calculate the molar mass ofNa2CO3.(6 points)3.Calculate the % composition of each element inNa2CO3.( 5 points per element)% Na:% C:% O:4.Calculate the mass of
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Term
Fall
Professor
NoProfessor
Tags
sodium bicarbonate, Natron, Mass of foil dish

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