Mole concept ok1294991357

Essential Understandings ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Pre-test ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Atoms, Atomic Masses and Moles ,[object Object],[object Object]

The Avogadro constant, moles and molar masses ,[object Object]

[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Questions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

So what have moles to do with the Sahara desert?

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object]

Remember this template C H Mass in grams 85.72 14.28 Moles 85.72/12 14.28/1 Ratio 7.14 14.28 Simple ratio 1 2 Empirical formula CH 2

What to do if you have horrible numbers ,[object Object],[object Object]

[object Object],[object Object],S Cl Mass/g 1.31 4.22-1.31 Moles 1.31/32 2.91/35.5 Ratio 0.04094 0.08197 Simple ratio 1 2 Empirical formula SCl 2

[object Object],[object Object],C H O Mass 63.2 5.26 100 -(63.2+5.26) Moles 63.2/12 5.26/1 31.54/16 Ratio 5.2666 5.26 1.9713 Ratio 2.67 2.67 1 Simple Ratio 8 8 3 Empirical formula C 8 H 8 O 3

[object Object],C Cl F Mass/g 0.423 2.50 1.34 Moles Ratio Ratio Simple Ratio Empirical

This looks pretty Complicated so let us just Consider Room Temperature and Pressure, then 1mole Of any gas occupies 24 liters =24,000cm 3 You can thank Mr Avogadro for this

Let us now consider chemical equations

Mole concept ok1294991357

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