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Stoichiometry

Stoichiometry. 1. Mole - mole. Moles A  Moles B. 2. Mole - mass. Moles A  Moles B  Mass B. 3. Mass - mole. Mass A  Moles A  Moles B. 4. Mass - mass. Mass A  Moles A  Moles B  Mass B. A. B. N 2 + H 2 . 3. 2. NH 3.

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Stoichiometry

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  1. Stoichiometry 1. Mole - mole Moles A  Moles B 2. Mole - mass Moles A  Moles B  Mass B 3. Mass - mole Mass A  Moles A  Moles B 4. Mass - mass Mass A  Moles A  Moles B  Mass B

  2. A B N2 + H2 3 2 NH3 How many moles of ammonia will be produced from 4.5 moles of hydrogen? mass A  moles A  moles B  mass B 2 mol NH3 4.5 mol H2 x = 3 mol NH3 3 mol H2

  3. B HgO Hg + O2 2 2 A How many moles of mercury (II) oxide are needed to produce 125 g of oxygen? mass A  moles A  moles B  mass B 1 mol O2 2 mol HgO 125 g O2 x x = 7.81 mol HgO 32.0 g O2 1 mol O2

  4. A B Fe3O4 + CO  Fe + CO2 4 3 4 What mass of Fe can be produced from the complete reaction of 4.0 moles of CO? mass A  moles A  moles B  mass B 3 mol Fe 55.85 g Fe 4.0 mol CO x x = 4 mol CO 1 mol Fe 167.55 g Fe

  5. Fe3O4 + CO  Fe + CO2 4 3 4 A What mass of CO2 can be produced from 25.0 g of Fe3O4? B mass A  moles A  moles B  mass B 1 mol Fe3O4 4 mol CO2 44.01 g CO2 25.0 g Fe3O4 x x x = 231.55 g Fe3O4 1 mol Fe3O4 1 mol CO2 19.01 g CO2

  6. WO3 + H2 W + H2O 3 3 What mass of hydrogen is needed to produce 75.0 g of tungsten?

  7. 2 Al + H2SO4 Al2(SO4)3 + H2 3 3 If 37.52 grams of aluminum reacts, what mass of aluminum sulfate will be produced?

  8. Fe + CuSO4 Fe2(SO4)3 + Cu How many moles of CuSO4 is required to produce 132.6 grams of Cu?

  9. AgNO3 + BaCl2 AgCl + Ba(NO3)2 What mass of barium chloride is needed to produce 235.50 grams of silver chloride?

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