8️⃣ Chem 8: Conversions and Constants

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13 Terms

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Avogadro's Constant

6.02 × 10^23 particles in 1 mole

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Volume of 1 Mole of Gas (RTP)

24 dm³

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Unit Conversion (cm³ → dm³)

Divide by 1000

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Unit Conversion (g → kg)

Divide by 1000

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Proton Relative Charge

+1 (equal to electrons in neutral atom)

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Neutron Relative Charge

0

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Electron Relative Charge

-1

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Proton Relative Mass

1

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Neutron Relative Mass

1

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Electron Relative Mass

Very small (~1/1836)

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pH 7 (Neutral)

H+ concentration = OH- concentration (e.g., pure water)

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pH 1 Unit Change

Represents ten-fold change in H+ concentration

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