1. What is the mass percent composition of oxygen in a compound having the empirical formula C16H24O5?2. Nitrous oxide (N2O) having a mass of 4.14 g reacts completely with an equimolar amount of NO2 to form elemental nitrogen and oxygen. What is the mass of N2 formed in this reaction?3. If 61.0 mL of KCl(aq) solution is combined with 90.0 mL of 0.500 M AgNO3, a white solid identified as AgCl(s) precipitates from the solution. After filtering and weighing, the mass of AgCl was determined to be 0.890 g. What was the original concentration of the KCl solution?

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Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter2: Chemical Compounds

Section: Chapter Questions

Problem 84QRT

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What is the mass percent composition of oxygen in a compound having the empirical formula C₁₆H₂₄O₅?

Nitrous oxide (N₂O) having a mass of 4.14 g reacts completely with an equimolar amount of NO₂ to form elemental nitrogen and oxygen. What is the mass of N₂ formed in this reaction?

If 61.0 mL of KCl(aq) solution is combined with 90.0 mL of 0.500 M AgNO₃, a white solid identified as AgCl(s) precipitates from the solution. After filtering and weighing, the mass of AgCl was determined to be 0.890 g. What was the original concentration of the KCl solution?

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