3.1 through 3.8

Question 1

What is molarity?

Answer 1

moles of solute per liter of solution
M = mol/L

Question 2

What is an angstrom?

Answer 2

unit of length equal to 10^-10m used to express atomic radii and bond lengths

Question 3

What is density?

Answer 3

mass per volume (m/v)

Question 4

What is a molecule?

Answer 4

when two or more atoms form a covalent bond; the smallest patricle that has any of the chemical or physical properties of a compound

Question 5

What is a molecular formula?

Answer 5

the formula representing the number and type of constituent atoms in a compound

Question 6

What is an empirical formula?

Answer 6

formula for a compound in which the number of atoms of each element in the compound are represented by the lowest whole number ratio

Question 7

What is formula weight?

Answer 7

sum of the atomic weights of all of the atoms in the molecule

Question 8

What is the atomic mass unit?

Answer 8

unit of mass most convenient for individual subatomic particles, atoms, and molecules; 1/12 the mass of carbon-12

Question 9

What is the term formula weight used for?

Answer 9

ionic compounds

Question 10

What is a mole?

Answer 10

particular number of things; 6.02 x 10^23 entities

Question 11

What is Avogadro’s number?

Answer 11

6.02 x 10^23

Question 12

How do you find the number of moles?

Answer 12

mass/molecular weight