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Advanced Molar Conversions and Percent Composition Practice

This resource provides comprehensive practice problems for molar conversions, percent composition, and empirical and molecular formulas in chemistry. Cover a wide range of topics including calculating moles of substances like C6H12O6, Na2SO4, O2, and more, alongside their corresponding formula units. The percent composition section tests knowledge on various compounds, revealing the percentage composition of elements within each substance. Ideal for students looking to strengthen their understanding of stoichiometry and formula calculations.

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Advanced Molar Conversions and Percent Composition Practice

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  1. Molar Conversions Practice #2(pg 11) • 0.0999 mol C6H12O6 • 1.82 x 1024 F.U.s Ca3(PO4)2 • 1.45 x 106 L CH4 • 1020 g Na2SO4 • 3.55 x 1024 F.U.s CaCl2 • 1020 g NaI • 0.11 mol O2 • 2.044 x 1024 F.U.s NaCl • 299 g KOH • 1.42 x 1022 F.U.s AlF3 • 762 g BaS • 32.3 L C3H8 • 5.20 x 104 g MgS

  2. Percent Composition Practice #2(pg 13) • N 24.12%H 6.96%S 27.61%O 41.32% • Al 13.22%C 35.30%H 4.45%O 47.03% • Na 22.34%Br 77.66% • Cu 65.13%O 32.80%H 2.07% • Mn30.70%N 15.66%O 53.64% • Li 40.20%P 49.80% • Ni 28.94%S 23.72%O 47.34% • Mg 28.83%C 14.24%O 56.93% • Fe 46.88%P 17.33%O 35.81% • K 60.04%C 18.44%N 21.51% • Be 49.10%N 50.90%

  3. Empirical and Molecular Formulas Pg 14 Pg 15 Example 3: C8H10O2N4 Example 4: C2H8N2 C6H16N2 C5H10O2 Cl2OC Example 1: C4H5ON2Example 2: N2O5 • C3H8N • C5H10O2 • Cl2OC

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