Stoichiometry Flashcards

1
Q

the amount of a substance that contains the same number of particles as atoms in exactly 12 grams of carbon-12.

A

mole (mol)

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2
Q

The number of particles per mole and is numerically equal to 6.022 x 10^23

A

Avogadro’s number

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3
Q

The mass in grams of one mole of a substance.

A

Molar mass

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4
Q

tells us what elements are present in the compound and the simplest whole-number ratio of elements

A

Empirical Formula

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5
Q

tells which elements are in the compound and the actual number of each.

A

Molecular (actual) formula

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6
Q

are reversible and causes no change in composition of the substance

A

Physical change

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7
Q

Involves a change in composition and is usually irreversible

A

Chemical change

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8
Q

The calculation of the amount (mass, moles, particles) of one substance in a chemical reaction using another substance.

A

Stoichiometry

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9
Q

The reactant that is completely used up in a chemical reaction

A

Limiting Reactant

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10
Q

The reactant that is left over in a chemical reaction

A

Excess reactant

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11
Q

The maximum amount of product formed

A

Theoretical Yield

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12
Q

The amount of product that is actually formed

A

Actual Yield

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13
Q

The actual yield divided by the theoretical yield and converted into a percentage

A

Percent yield

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14
Q

Homogeneous mixtures composed of a solute and a solvent.

A

Solution

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15
Q

substance present in a solution in smaller amount

A

Solute

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16
Q

substance present in a solution in larger amount

A

Solvent

17
Q

The amount of a solute dissolved in the solvent

A

Concetration

18
Q

defined as the moles of solute per liter of solution

A

Molarity