chemistry vocab chp 10

Question 1

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

Answer 1

mole

Question 2

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

Answer 2

Avogadro’s number

Question 3

the mass in grams of one mole of any pure substances

Answer 3

molar mass

Question 4

the percent by mass of each element compound

Answer 4

percent composition

Question 5

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

Answer 5

empirical formula

Question 6

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

Answer 6

molecular formula

Question 7

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

Answer 7

hydrate