Converting atoms to g
[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 ...
Kent School District
An H 2 O molecule has two hydrogen atoms and one oxygen atom, so the molar mass is (1.0079g H/mol x 2) + (15.999g O/mol x 1). Notice how to distinguish hydrogen and oxygen in our calculation, we wrote g H/mol (grams of hydrogen per mole) and g O/mol (grams of oxygen per mole).
[DOC File]Mole Conversions Worksheet
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How many atoms are in 0.750 moles of zinc? 5. How many molecules are in 0.400 moles of N2O5? Mole-Mass Conversions. How many moles in 28 grams of CO2 ? Gram-atomic-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 ? Gram-atomic-mass Fe2O3. 2 Fe = 2 ...
[DOC File]Mole Conversions Worksheet
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2 F = 2 x 19 g = 38 g/mol. 2.00 x 1023 molecules= 12.6 g. 3. Determine the volume in liters occupied by 14 g of nitrogen gas at STP. Ans. 11.2 L. 4. Find the mass, in grams, of 1.00 x 1023 molecules of N2. Ans. 4.65 g. 5. How many particles are there in 1.43 g of a molecular compound with a gram. molecular mass of 233 g? Ans. 3.69 x 1021. 6.
[DOC File]Chapter 11 – The Mole
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Converting atoms to mass. Ex] A party balloon contains 5.50 x 1022 atoms of helium gas. What is the mass in grams of the helium? Step 1 – Use Avogadro’s number to convert known . number of atoms to moles. Step 2 – Determine molar mass.
Worksheet – Mole Conversions
38.5 g CO2 x 1 mol CO2 x 6.022 x 1023 molecules CO2 = 5.27 x 1023 molecules CO2. 44.01 g CO2 1 mol CO2. 2. How many oxygen atoms are in 81.2 g of calcium hydroxide? 81.2 g Ca(OH)2 x 1 mol Ca(OH)2 x 2 mol O x 6.022 x 1023 atoms O = 74.1 g Ca(OH)2 1 mol Ca(OH)2 1 mol O. 1.32 x 1024 atoms …
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