Chemical Quantities

Mass to Mole

1.00 mol

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Molar Mass

Mole to Mass

Molar Mass

---

1.00 mole

Mole to STP

22.4 L

---

1.00 mole

STP to mole

1.00 mole

---

22.4L

Mole to Particles

6.02×10²³

---

1.00 mole

Particles to Mole

1.00 mole

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6.02×10²³

Given Formula Find the %

1. E#MT

2. (element mass/molar mass)x100%

Given Formula and a Mass Find %

1. E#MT

2. (Element Mass/Molar Mass)x Mass Given

Given Masses Find %

1. (Element Mass/Total Mass)x100%

Empirical Formula

• a formula of a compound gives the lowest whole-number ratio of the atoms of the elements in a compound

• NOT always the same as molecular formulas when they are different, the molecular formula is a simple simple multiple of this

Molecular Formula Definition

• either the same as the empirical formula or a simple whole-number multiple of it

Multiplier Formula

(Molar Mass Molecular Formula/Molar Mass Empirical Formula)= Multiplier