chemistry vocab chp 10 Flashcards Preview

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Flashcards in chemistry vocab chp 10 Deck (7)
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1
Q

the SI base unit used to measure the amount of a substance, abbreviated mol; one mole is the amount of a pure substance that contains 6.02x10^23 representative particles

A

mole

2
Q

the number 6.0221367x10^23, which is the number of representative particles in a mole, and can be rounded to three significant digits 6.02x10^23

A

Avogadro’s number

3
Q

the mass in grams of one mole of any pure substances

A

molar mass

4
Q

the percent by mass of each element compound

A

percent composition

5
Q

a formula that shows the smallest whole-number mole ratio of the elements of a compound, and might not be the same as the actual molecular formula

A

empirical formula

6
Q

a formula that specifies the actual number of atoms of each element in one molecule of a substance

A

molecular formula

7
Q

a compound that has a specific number of water molecules bound to its atoms

A

hydrate