'10 24 molecules' presentation slideshows

The Mole

The Mole. Chapter 11. Measuring Matter. Section 11.1. How much is a mole?. Count large # of items is easier when you use counting units like the dozen Chemists use a counting unit called the mole. How is a mole used in chemistry?.

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7.2

7.2. More Mole Conversions !!!. Molar Mass. The mass in grams of 1 mol of a substance. Calculated using the periodic table!!! Example: What is the molar mass of N 2 , nitrogen gas? 2 (14g) = 28 g. Another Example What is the molar mass of molecular oxygen, O 2 ? 2 (16g) = 32 g.

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Moles and Molar Mass Chemistry

Moles and Molar Mass Chemistry. Learning Objectives. TLW define and use the concept of a mole (TEKS 8.A) TLW use the mole concept to calculate the number of atoms, ions, and molecules in a sample of material (TEKS 8.B) TLW manipulate chemical quantities using dimensional analysis (TEKS 2.G).

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The Mole Concept Introduction Number of Particles and Moles Topic 1.2

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Molar Conversions

MASS IN GRAMS. MOLES. NUMBER OF PARTICLES. Molar Conversions. molar mass. 6.02 ? 10 23. ( g/mol ). ( particles/mol ). EXAMPLE: GRAMS TO MOLES. How many moles of carbon are in 26 g of carbon?. 26 g C. 1 mol C 12.01 g C. = 2.16 mol C. SOLVE: GRAMS TO MOLES.

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Stoichiometry Notes

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Stoichiometry Notes

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Moles, Molecules and Grams

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IV. Converting between Particles and Mass

IV. Converting between Particles and Mass. The Mole. A . Converting Particles to Mass. Since 6.02 X 10 23 particles = 1 mole AND 1 mole = molar mass (grams) You can convert atoms/molecules to moles and then moles to grams! (Two step process).

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A to B Stoichiometry

A to B Stoichiometry. Given the reaction 2PbS + 3O 2 ? 2PbO + 2SO 2 239.27 32.00 223.20 64.07 g/mole. 261.6 grams 116.3 grams 174.4 grams 223.2 grams 186.9 grams. 25.00 g of O 2 will yield how many grams of PbO ?.

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Conversions WS III

Conversions WS III. Answers. Perform the following conversions. Show all your work and include units in your answer!!. 1. How many molecules are in 0.95 moles of I 2 ? 5.72 x 10 23 molecules 2. How many molecules are in 326 g of Cu(NO 3 ) 2 ? 1.04 x 10 24 molecules

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