Number of atoms to grams
[DOC File]Name_______________________________
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Calculate the number of molecules in 8.33 grams of O2. Calculate the number of atoms in 43.33 grams of iron, Fe? c) Calculate the number of particles in 32.8 grams of Cu2S. Calculate the number of grams of lithium in 5.44 x 1021 atoms of lithium. f) Calculate the number of grams of SO3 in 3.92 x 1025 molecules of sulfur trioxide.
[DOC File]Chemistry Worksheet Stoichiometry
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Calculate the number of atoms in 13.2 mol copper. A. 2.19 x 1023 atoms C. 7.95 x 10–23 atoms B. 7.95 x 1024 atoms D. 79.5 x 1023 atoms 5. Copper (Cu) is a transition element used in the making of coins. Calculate the mass in grams of 0.0420 moles of copper. A. 0.00697 g B. 0.252 g C. 2.67 g D. 6.61 g 6. Determine the mass in grams of 0.0489 ...
[DOC File]Mole Calculation Worksheet
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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, H2O 2.20x1023 atoms Sodium, Na 0.23 moles Chlorine, Cl 127g Sodium Chloride, NaCl 1.20x1024 atoms Sulfur Dioxide ...
[DOC File]AP* Chemistry
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—the number of C atoms in exactly 12.0 grams of 12C; also a number, 6.02 × 1023 just. as the word “dozen” means 12 and “couple” means 2. • Avogadro’s number —6.02 × 1023, the number of particles in a mole of anything. DIMENSIONAL ANALYSIS DISCLAIMER: Beginning on …
Chapter 3: Mass Relationships in Chemical Reactions
4. An atom of bromine has a mass about four times greater than that of an atom of neon. How many grams of neon will contain the same number of atoms as 1,000 g of bromine? A) 4 g Ne B) 250 g Ne C) 400 g Ne D) 1,000 g Ne E) 4,000 g Ne. Ans: B Category: Medium Section: 3.1. 5.
[DOC File]CHAPTER 2 - ATOMS & MOLECULES
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0.150 mol Cu x 6.022 x 1023 atoms = 9.03 x 1022 Cu atoms. 1 mole. The Avogadro’s number can be used (as a conversion factor) to calculate the number of moles of an element from the number of atoms in a sample. For example, suppose we have a sample that contains 1.2 x 1021 silicon atoms. The number of moles of silicon atoms in this sample is,
[DOC File]AVOGADRO'S NUMBER WORKSHEET
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13. How many oxygen atoms are there in 2.4 pounds of calcium acetate? 14. How many chlorine atoms are there in 45 grams of mercurous chlorate? 15. If there are known to be 1.06 X 1024 OXYGEN ATOMS in a sample of barium . permanganate, what is the mass of the entire sample of barium permanganate. in grams…
[DOC File]The Mega Mole Worksheet
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12.04 x 1023 atoms He. 3.01 x 1023 atoms Cu. 3.612 x 1023 atoms Fe. 100 atoms Ar. 1 atom S. 24 grams S. 59.3 grams Sn. 98.9 grams Na. 5000 grams K. 0.000500 grams Ne #11-15 Convert to mass in grams. 10.0 moles Na. 2.20 moles Sn. 5.00 moles Ag. 0.0003000 moles Au. 1.00 x 1023 moles B #16-20 Convert to number of atoms. 3.00 moles Ar. 8.50 moles ...
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