## Presentation on theme: "Meacertain quantities of somepoint through 3 different methods—"— Presentation transcript:

1 Meacertain amounts of somepoint through 3 different methods— Measuring Matter Measure quantities of somepoint through 3 various methods— by count, by mass, and also by volume. Which of these is measured by count? by mass/weight? by volume?

2 video clip – TEDEd How huge is a mole (4 min)

3 1 mole of atoms is 602,000,000,000,000,000,000,000 atoms!

4 6.02 x 1023 pwrite-ups 602,000,000,000,000,000,000,000 pposts Avogadro’s Number

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7 Which weighs more? Which has actually more animals? 6.02 x 1023 atoms of Ne 6.02 x 1023 atoms of C (20 grams) (12 grams) Which weighs more? Which has more atoms? The number of grams in a mole of pposts is various by substance.

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9 A mole of any kind of substance includes Avogadro’s number of pshort articles, or 6.02  1023 pposts. (pshort articles = atoms, molecules, formula systems,…) Type 1 Moles Pposts ## mol x 6.02 x 1023 pposts = ____ pwrite-ups 1 mol Mole = Latin “pile, heap, or mass” Type 2 Particles Moles ## x 10## pshort articles x mol = ____ mol 6.02 x 1023 pposts

10 Type 1 Moles Pshort articles 2.12 mol x _________________ = 6.02 x 1023 1How many molecules are in 2.12 mol of propane gas (C3H8) ? 2.12 mol x _________________ = 6.02 x 1023 molecules ____ molecules 1 mol 1.28 x 1024 molecules in a BOX!!!

11 Type 2 Pwrite-ups Moles _____________ = 1 mol ___ mol 1.25 x 1023 atoms x 6.02 x 1023 atoms 0.208 mol in a BOX!!!

12 How many kind of moles is 2.17 x 1024 molecules of Br2 ? Type 2Pposts Moles ________________ = 1 2.17 x 1024 molecules x mol ___ mol 6.02 x 1023 molecules 3.60 mol WS Moles & Molar Mass #1-3 in a BOX!!!

13 How many kind of atoms are in 1.14 mol SO3?Moles Pshort articles 1.14 mol x 6.02 x 1023 molecules 4 atoms x = 1 mol 1 molecule Type 1 (plus) 2.75 x 1024 atoms in a BOX!!!