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The Mole and Gram-Formula Mass

The Mole and Gram-Formula Mass. The Mole and Gram-Formula Mass. A mole is a collection of 6.02 X10 23 things (atoms, ions, molecules, electrons, etc.). 602,000,000,000,000,000,000,000 The mass, in grams, of one mole of an element’s atoms is known as the gram-formula mass .

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The Mole and Gram-Formula Mass

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  1. The Mole and Gram-Formula Mass

  2. The Mole and Gram-Formula Mass • A mole is a collection of 6.02 X1023 things (atoms, ions, molecules, electrons, etc.). 602,000,000,000,000,000,000,000 • The mass, in grams, of one mole of an element’s atoms is known as the gram-formula mass. GFM = gram-formula mass

  3. The Mole and Gram-Formula Mass Ex. (1) What is the gram-formula mass of copper? ________ g/mole Ex. (2) What is the gram-formula mass of gold? ________ g/mole Ex. (3) What is the gram-formula mass of oxygen gas? ________ g/mole 63.546 196.967 31.9988

  4. The Mole and Gram-Formula Mass Ex. (4) What is the mass in grams of 1.00 mole of helium gas? ________ g Ex. (5) What is the mass in grams of 1.00 mole of pure iodine? ________ g 4.00260 253.808

  5. The Mole and Gram-Formula Mass Ex. (6) How many moles of carbon are present in a 1 carat (0.200 g) diamond (yes it's all carbon)? # moles = given mass GFM X = X = 0.200 g 12.011 g/mol 0.0167 mol

  6. The Mole and Gram-Formula Mass Ex. (7) What is the mass of 2.94 moles of Au? # moles = given mass GFM 2.94 mol = X = X 1 196.967 g/mol 579 g

  7. The Mole and Gram-Formula Mass Ex. (8) How many moles of copper are present in 56.4 g copper cylinder? # moles = given mass GFM X = 63.546 g/mol X = 56.4 g 0.888 mol

  8. The Mole and Gram-Formula Mass Ex. (9) What is the mass of 4.75 moles of oxygen gas? # moles = given mass GFM 4.75 mol = 31.9988 g/mol X = X 1 152 g

  9. The Mole and Gram-Formula Mass Ex. (10) How many moles are present in a balloon filled with 0.00008746 g of helium gas? # moles = given mass GFM X = 4.00260 g/mol X = 0.00008746 g 0.00002185 mol

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