Grams and moles to formula mass
[DOC File]Mole Calculation Worksheet
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Moles, Grams and Molecules Worksheet. Use the number of moles given to fill in the table below. Use your Periodic Table, calculator, and Avogadro’s number (6.02x1023) to help. Check your notes for help with molar mass! (Here’s how to find the answers. To find mass in grams To find # of particles # of moles x molar mass # of moles x 6.02x1023
[DOC File]CHEMISTRY WORKSHEET # 2 MOLE PROBLEMS—THE MOLE …
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moles packet chemistry worksheet # 1 molar mass (gram molecular/formula weights) We know that grams are actually a measure of the mass of matter and not the weight. Mass is the quantity of matter present; weight is a measure of the pull of gravity on matter and is measured in pounds or Newtons.
[DOC File]CHEMISTRY WORKSHEET # 2 MOLE PROBLEMS—THE MOLE …
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Now that you know how to find the mass of one mole of a substance (molar mass) you can easily find the mass of several moles or the mass of a fraction of a mole using the factor-label technique. EXAMPLE: What is the mass of 5.00 moles of water(H20)? 2 H = 2 x( 1.01) = 2.02 # grams H20 = 5.00 moles H20 x 18.02 g H20 = 90.10 g H2O
[DOC File]NOTES – MOLAR MASS AND MOLE CONVERSIONS
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Write the formula for each compound below. Then determine its molar mass. FORMULA MOLAR MASS calcium sulfate CaSO4 136.2 g/mol aluminum cyanide Al(CN)3 105 g/mol phosphorus triiodide PI3 411.7 g/mol 2. Use the molar masses you found in # 1 to make the following conversions: a. Find the mass of 1.25moles of calcium sulfate.
[DOC File]Mole Conversions Worksheet
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5 moles Fe2O3 = 800 grams 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. Mixed Mole Conversions. Given unit ( Moles ( Desired unit. 1. Find the mass in grams of 2.00 x 1023 molecules of F2. 12.624 g. Gram-formula-mass. 2 F = 2 x 19 g = 38 g ...
[DOC File]Moles Class Packet Unit 2
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MOLES and MOLAR MASS. 1. The mole represents 6.02x1023 particles such as atoms and molecules of any substance. The Molar Mass (aka gram formula mass or molecular mass) is the mass of one mole of a substance. Element’s molar masses are reported on the periodic table.
[DOC File]Mole Conversion Worksheet
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How many moles in 28 grams of CO2 ? 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.
[DOC File]Honors Chemistry I
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3. A student reacted 0.273 grams of magnesium metal with atomic gaseous nitrogen, producing a residue having a mass of 0.378 grams. If 4.000 grams of this compound is analyzed to be 0.01321 moles of compound, what is the true formula? 0.378 g - 0.273 g = 0.105 g = mass of nitrogen
[DOC File]UNIT 3 – WORKSHEET 1: MOLE PROBLEMS
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Find the number of moles in: a. 1.25 grams of strontium nitrate _____ b. 0.570 g of chlorine gas (Cl2) _____ 3. How many formula units are in 225 g of lithium oxide? ... Find the molecular formula of a compound if its empirical formula is CH2O and its molar mass is 90 g/mol. CH2O = 12 + (2 x 1) + 16 = 30 g/mol. 90/30 = 3, so empirical formula x ...
[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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