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[DOC File]Moles Class Packet Unit 2
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The formula mass of a substance is the sum of the atomic masses of its atoms. The molar mass (gram formula mass) of a substance equals one mole of that substance. (3.3e) The percent composition by mass of each element in a compound can be calculated mathematically. (3.3f)
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[DOC File]Grams, Moles, and Molecules
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Substance Grams Formula mass (g/mol) Moles Formula Units (ie. molecules) He 0.0035 Cl2 0.0000634 O3 0.0005027 HBr 0.013 NaOH 0.02998 PbSO4 0.050 CH4 0.00874 CH2Cl2 0.00385 CH3CH2OH 1.0067 C6H12O6 6.0786
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[DOC File]Mole Calculation Worksheet
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0.2 mole x 1.00 g/mol = 0.20 g 0.2 mole x 6.02x1023 atoms/mol = 1.20x1023 atoms. SOLVE ANY 7 OF THE FOLLOWING: Element or Compound # of Moles Molar Mass in g/mol Mass in grams # of particles Hydrogen, H 1 mole 1.01 g/mol 1.01 g 6.02x1023 atoms Hydrogen, H 0.2 moles 1.01 g/mol 0.201 g 1.20x1023 atoms Lithium, Li 9.4 moles Oxygen, O 25g Water ...
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[DOC File]CHEMISTRY WORKSHEET # 2 MOLE PROBLEMS—THE MOLE …
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Molar mass tells us the mass (“weight”) of 1 mol ofan atom or compound. In each case . we simply calculate the sum of the “weights” of the atoms in the formula to determine the weight of a mole. These weights can be found on the periodic table. EXAMPLE: Calculate the molar mass (gram molecular weight) of a mole of iodine, I2.
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[DOC File]Mole Conversions Worksheet
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1 mol = 6.02 x 1023 particles. 1 mol = g-formula-mass (periodic table) 1 mol = 22.4 L for a gas at STP. Each equality can be written as a set of two conversion factors. They are: Mole-Particle Conversions. 1. How many moles of magnesium is 3.01 x 1022 atoms of …
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[DOC File]Dimensional Analysis WorkSheet
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1 mol = 6.02 x 1023 particles [atoms, molecules, formula units] 1 mol = Molar Mass [also called gram-formula-mass] 2.Solve the following problems: a. How many molecules are there in 400 grams of glucose, C6H12O6? b. How many grams are 1.20 x 1025 atoms of phosphorous? c. How many atoms are in 0.750 grams of zinc? d.
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[DOC File]Leon M Goldstein High School For The Sciences
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Feb 01, 2011 · 0.175 mol * (gram formula mass of KNO3) = grams of KNO3. 5. How many liters of solution can be produced from 2.5 moles of solute if a 2.0 M. solution is needed? (2.5 moles / 2 mol/ L ) = 1.25 L. III) Concentration Percent by mass: 10.8 g of sodium chlorate is dissolved in 85 g of water. Determine the percentage by mass of sodium chlorate in ...
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[DOC File]Chemistry - Weebly
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A 2.65-gram sample of powder contains 0.70 grams of chromium, 0.65 grams of sulfur. The other element in the powder is oxygen. The compound has a molar mass of 392.2 g/mol. Determine the molecular formula for the compound.
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[DOC File]Mole Conversion Worksheet
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Gram-formula-mass of CO2. 1 C = 1 x 12.01 g = 12.01 g. 2 O = 2 x 16.00 g = 32.00 g. 64.00 g/mol 28 g CO2 = 0.64 moles CO2. What is the mass of 5 moles of Fe2O3 ? Find the number of moles of argon in 452 g of argon. Find the grams in 1.26 x 10-4 mol of HC2H3O2. Find the mass in 2.6 mol of lithium bromide. Mole-Volume Conversions. 1.
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[DOC File]Mole Conversions Worksheet
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1 mol = 6.02 x 1023 particles. 1 mol = grams atomic mass (periodic table) Each equality can be written as a set of two conversion factors. They are: Mole-Particle Conversions. 1. How many moles of magnesium is 3.01 x 1022 atoms of magnesium? 3.01 x 1022 atoms = 5 x 10-2 moles. 2. How many molecules are there in 4.00 moles of glucose, C6H12O6? 4.00 moles =
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Mol to gram formula