Chapter 3 The Mole

Question 1

Relative mass

Answer 1

Comparing one objects mass to another

Question 2

Weigh

Answer 2

To find. The weight or compare the mass of

Question 3

Law of constant composition

Answer 3

The law that states that all samples in a given compound have the same mass ratio of their given constituents

Question 4

Mole

Answer 4

The quantity equal to the number of of atoms in the atomic mass do any element expressed in grams

Question 5

Avegadros number

Answer 5

6.022e23

Question 6

Molecular mass/ formula mass of a compound

Answer 6

The sum of the constituent elements atomic masses

Question 7

Stoichiometry

Answer 7

A branch of chemistry that deals with the quantities relationships between elements in a compound

Question 8

Molar volume

Answer 8

The volume of a mole of a substance .

Question 9

Avegadros hypothesis

Answer 9

Moles of different gasses under the same temperature and pressure contain the same volume

Question 10

1 mole of any gas at stp

Answer 10

Is equal to 22.4 liters

Question 11

What is stp

Answer 11

0 degrees Celsius and 101.3 kpa

Question 12

Density

Answer 12

The amount of matter in the given volume of a substance. Aka the mass per unit volume

Question 13

Empirical formula

Answer 13

The simple integral ratio of the different elements in the formula

Question 14

Molecular formula

Answer 14

The actual number of each type of atom in each molecule of the compound

Question 15

The structural formula

Answer 15

Show how the atoms in a molecule are arranged

Question 16

Concentration

Answer 16

Any expression of the proportion of a chemical in a solution

Question 17

Molar (molarity)

Answer 17

(M)the number of moles in the chemical per liter of the solution

Question 18

Mass

Answer 18

The amount of matter

Question 19

Molar concentration is indicated by

Answer 19

Putting brackets around the formula

Question 20

What concentrations are present in 1.5 M CaCl2 and how did you find out.

Answer 20

Steps.
1. Look at the moles in the compound. (1 mol ca, and 2 mol cl)
2 times the molarity by step number 1.
3. Stop writing… If you keep writing after you have the answer, you will definitely get it wrong.

Question 21

Why is a raven like a writing desk?

Answer 21

Edgar Allan Poe wrote on both of them.