Grams to atoms set up
[DOC File]Percent composition, ppm, half life
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D) An aqueous solution has 0.0070 gram of oxygen dissolved in 1000. grams of water. In. the space in your answer booklet, calculate the dissolved oxygen concentration of this. solution in parts per million. Your response must include both a correct numerical. setup and the calculated result. [2] E) An aqueous solution contains 300. parts per ...
[DOC File]Mole Conversions Worksheet
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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 = 2.41 x 1024 ...
[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]Homework given 3-6-00
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Apr 18, 2009 · Grams to moles to atoms You must show all work and box your answers It will not be graded without showing the set up! 1. Calculate the number of moles in each of the following masses: 0.039 g of palladium. 8200 g of iron. 0.0073 kg of tantalum. 0.00655 g of antimony.
[DOC File]Honors Chemistry I
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Empirical / Molecular Formulas. Problem Set #1 1. A sample is analyzed as containing 24.09 grams of potassium, 0.308 moles of manganese, and 7.42 x 1023 atoms of oxygen.
[DOC File]PS.Ch6.Test.95
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b) 550. grams d) 12.7 mm. 10. The number 6.33 x 102 equals, a) 6.33 c) 633. b) 0.633 d) 0.0633. 11. All the following are characteristic properties of phosphorus. Which one is a chemical property? a) Both red phosphorus and white phosphorus exist in solid allotropic forms. b) The red form melts at about 600°C and the white form melts at 44°C.
[DOC File]www.lancasterschools.org
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4. What is the half-life of an element if a 500. gram sample decays to 62.5 grams in 639,000 years? 5. If there are 25.0 grams of a sample of thorium-232 left after 2.80 x 1010 years, how many grams were in the original sample? 6. How long will it take for 16 grams of Ra-226 to break down until only 1.0 grams …
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