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EMPIRICAL AND MOLECULAR

Published on Dec 06, 2015

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PRESENTATION OUTLINE

1.

EMPIRICAL AND MOLECULAR

Photo by Science Museum London
2.

DETERMINING EMPIRICAL

the simplest ratIo
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3.

EXAMPLE PROBLEM

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4.

Methyl acetate is a solvent commonly used in some paints, inks, and adhesives. Determine the empirical formula for methyl acetate, which has the following chemical analysis: 48.64% carbon, 8.16% hydrogen, and 43.20% oxygen.

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5.

Percent to Mass

STEP ONE:
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6.

Mass to Moles

STEP TWO:
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7.

Divide by Small

STEP THREE: 
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8.

Multiply ‘Til Whole

STEP FOUR:
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9.

determining molecular

actual number and types of atoms of a molecules
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10.

EXAMPLE PROBLEM

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11.

Succinic acid is a substance produced by lichens. Chemical analysis indicates it is composed of 40.68% carbon, 5.08% hydrogen, and 52.24% oxygen and has a molar mass of 118.1 g/mol. Determine the empirical and molecular formulas for succinic acid.

Photo by Symic
12.

Untitled Slide

John Queenie