CCU1 Mole conversion CoL

College Chemistry
Particle Conversion

Multiple Select

How many different kinds of atoms are present in NH₄NO₃?

• 7

• 9

• 3

• 4

Multiple Select

How many Nitrogens are present in NH₄NO₃?

• 1

• 2

• 3

• 4

Multiple Select

How many atoms (total atoms) are present in NH₄NO₃?

• 7

• 8

• 9

• 10

Multiple Select

How many different types of atoms are found in the hydrate (NH₄)₃PO₄*5H₂O?

• 6

• 5

• 3

• 4

Labelling

How many Oxygen atoms are in 4 molecules of C₆H₁₂O₆

Drag labels to their correct position on the image

1 molecule

6 O atoms

24 O atoms

0.27 moles

6.02x10²³ O atoms

1 mole

2.4x10²⁴ oxygen atoms

3.7 moles

6.02x10²³ O atoms

4 molecules

6.02 x 10²³ is
also known as
Avogadro’s
number.

(get it?)

In other words…

The Mole is a BIG number used to
describe things that are really small

...like atoms and molecules.

...so how big are we talking about???

Multiple Choice

6.02 x 10²³ is also called __________ number

• Avogadro's

• Simpson's

• Einstein's

• Newton's

USE YOUR CONVERSION FACTOR…
GET RID OF “moles” USING SOMETHING IT IS EQUAL TO (atoms).

THEN CANCEL OUT AND SIMPLIFY

3.5 moles

1 mole

6.02 x 1023 atoms

​3.5 x 6.02 x 10²³ = 2.11 x 10²⁴ atoms

SIMPLIFY AND CANCEL OUT THE 'ATOMS'

5.14 x 10²⁴ atoms

1 mole

​6.02 x 10²³ atoms

​6.02 x 10²³ atoms

​5.14 x 10²⁴ atoms

​= 8.54 moles

Labelling

How many moles are in 7.2x10²⁴ atoms?

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6.02x10²³ compounds

6.02x10²³ formula units

12 moles

1 mole

6.02x10²³ atoms

12 atoms

6.02x10²³ molecules

7.2x10²⁴ atoms

4.3x10⁴⁸ moles

4.3x10⁴⁸ atoms

Labelling

How many formula units are in 0.42 moles of KCl?

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6.02x10²³ compounds

6.02x10²³ atoms

0.42 moles

7.0x10^-25 moles

2.5x10²³ moles

7.0x10^-25 formula units

6.02x10²³ molecules

1 mole

6.02x10²³ formula units

2.5x10²³ formula units

Labelling

How many moles are in 3.2x10²² molecules of methane (CH₄)?

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19 moles

6.02x10²³ formula units

1 mole

1.9x10⁴⁶ moles

6.02x10²³ moles

6.02x10²³ atoms

0.053 moles

3.2x10²² molecules

6.02x10²³ compounds

6.02x10²³ molecules

Work Time:

• LL 1.7 Tye Dye Pre-lab

• Summary Page

  • Textbook reminder

  • I challenge you to add some of the "check your understanding"

• CQ 1.D Due on Test Day