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Gen Chem 1 > Chapter 3 > Flashcards

Chapter 3 Flashcards

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1
Q

Avogadro’s Number

A

Experimentally determined value of the number of entities comprising 1 mole of substance equal to 6.022 x 10^23

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2
Q

Aqueous Solution

A

Solution for which water is the solvent

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3
Q

Empirical Formula Mass

A

Sum of average atomic masses for all atoms represented in an empirical formula

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4
Q

Formula Mass

A

Sum of the average masses for all atoms represented in a chemical formula; for covalent compounds this is also the molecular mass

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5
Q

Mass Percentage

A

Ratio of solute-to-solution mass expressed as a percentage

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6
Q

Mass-Volume Percent

A

Ratio of solute mass to solution volume, expressed as a percentage

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7
Q

Molar Mass

A

Mass in grams of 1 mole of a substance

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8
Q

Mole

A

Amount of substance containing the same number of atoms, molecules, ions, and other entities as the number of atoms

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9
Q

Percent Composition

A

Percentage by mass of the various elements in a compound

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10
Q

Solute

A

Solution component present in a concentration less than that of the solvent

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11
Q

Solvent

A

Solution component present in a concentration that is higher relative to other components

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12
Q

Volume Percentage

A

Ratio of solute-to-solution volume expressed as a percentage

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13
Q

Concentrated

A

Qualitative term for a solution containing solute at a relatively high concentration

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14
Q

Dilute

A

Qualitative term for a solution containing solute at a relatively low concentration

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15
Q

Dilution

A

Process of adding solvent to a solution in order to lower the concentration of solutes

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16
Q

Dissolved

A

Describes the process by which solute components are dispersed in a solvent

17
Q

Parts Per Billion (ppb)

A

Ratio of solute-to-solution mass multiplied by 10^9

18
Q

Parts Per Million (ppm)

A

Ration of solute-to-solution mass multiplied by 10^6

19
Q

Percent Composition

A

Percentage by mass of the various elements in a compound

20
Q

Solute

A

Solution component present in a concentration less than that of the solvent

21
Q

Solvent

A

Solution component present in a concentration that is higher relative to the other components

22
Q

Volume Percentage

A

Ratio of solute-to-solution volume expressed as a percentage

Gen Chem 1 (6 decks)

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