'00 moles' diaporamas de présentation

The Mole

The Mole. A look at Avogadro's Number 6.02 x 10^23. Molecular Weight. The mole is the standard method in chemistry for communicating how much of a substance is present. What is Molecular Weight ? The weight in atomic mass units ( amu ) of all the atoms in a given formula

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Chapter 13 Water and Its Solutions

Chapter 13 Water and Its Solutions. Surface Tension. The net force acting on the molecules on the surface of some liquids due to the cohesive forces of the molecules Water has a high surface tension. Freezing and Boiling Points. The temperature at which a substances freezes

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Chemical Equilibrium & K C

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Molarity

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Stoichiometry

369 views • 19 slides

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Percent Composition

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Entropy Changes in Reversible Processes

Entropy Changes in Reversible Processes For reversible processes the entropy change can be calculated by starting with the expression: D S = ? dS = ? dq rev / T The particular problem will dictate how the right hand integral will be developed.

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Practice Mole Problems

Practice Mole Problems. 1. How many Mg 2+ ions are found in 1.00 mol of MgO ? 2. Calculate the number of molecules present in 0.20 moles of H 2 O. 3. How many grams of NaCl are present in 11.00 moles? 4. What is the molecular mass of MgSO 4 ?

336 views • 2 slides