Flashcards in Principles of Chemistry Deck (10):

1

## define a mixture

### components in VARIABLE proportion and NOT chemically bonded to each other

2

## give the formula for relative atomic mass

### sum of (isotope mass x isotope abundance) / 100

3

## what is Avogadro's number

### 6.02 x 10^23

4

## give the formula for volume of a gas

### V= mol x 24000

5

## give the formula for percentage yield

### % yield = (actual product/theoretical amount) x 100%

6

## give the two formulas to calculate charge

###
charge= current x time

charge = mol of e- x 96500

7

## define empirical formula

### empirical formula of a compound gives the SMALLEST RATIO of elements in the compound

8

## define molecular formula

### it gives the actual number of ATOMS of EACH ELEMENT in a MOLECULE of the compound

9

## how do you find molecular formula

###
1. find empirical formula

2. find formula mass of 1^

3. divide formula mass by the empirical formula mass 2^

4. multiply empirical formula mass by answer in 3^

10