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Formula mass hyperlearning
Formula mass
Hyperlearning
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Slide 1:
Slide
Science
Upper Secondary (Key Stage 4)
GCSE
This lesson contains
38 slides
, with
interactive quizzes
,
text slides
and
1 video
.
Lesson duration is:
30 min
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Items in this lesson
Formula mass
Hyperlearning
Slide 1 - Slide
What are you going to learn?
In this lesson you're going to learn how to . . .
1
2
3
How many atoms of each element in a chemical
How to look up relative atomic mass and calculate formula mass
apply your learning
Slide 2 - Slide
7
Slide 3 - Video
00:14
Which sub-atomic particles make up the atomic mass?
A
protons and electrons
B
protons and neutrons
C
neutrons and electrons
D
protons, neutrons and electrons
Slide 4 - Quiz
00:27
What is the correct term for atoms of the same element that have different atomic masses?
A
isotopes
B
ions
C
elements
D
atoms
Slide 5 - Quiz
00:43
What is the relative atomic mass of chlorine shown in the periodic table?
Slide 6 - Open question
01:01
What terms means a chemical that contains 2 or more elements chemically bonded to each other?
Slide 7 - Open question
01:19
How many atoms of magnesium are there in magnesium chloride?
Slide 8 - Open question
01:30
What is the rest of the sum for magnesium chloride, 24 +
Slide 9 - Open question
01:41
Which of the following is the correct composition of Sulfuric acid?
A
(2 x H) + S + (4 x O)
B
4 x (2H + S + O)
C
H + S + (4 x O)
D
(8 x H) + (4 x S) + (4 x O)
Slide 10 - Quiz
Slide 11 - Slide
Atomic mass
This is
protons + neutrons
Each of these sub-atomic particles has a mass of 1
electrons have a mass of virtually 0 so are not included in the mass
All the mass of an atom is therefore in the nucleus
The atomic number is just the number of protons
Slide 12 - Slide
Chemical formulae
Each capital letter in a formula is a new element
Some element symbols have a capital and a lowercase letter in their symbol
If there is no subscript number after then there is one atom of that element in the chemical
The subscript number only tells you about the number of atoms of the element just before the number
Slide 13 - Slide
Formula mass
This is the mass of every atom in the chemical added together
You get the relative atomic mass of each element from the periodic table
You then multiply each relative mass by the number of atoms there are of that element in the chemical
You then add all the numbers together
Slide 14 - Slide
Worked example
Calcium carbonate
(1 x Ca) + (1 x C) + (O x 3)
= 40 + 12 + (16 x 3)
= 52 + 48
= 100
Slide 15 - Slide
Worked example
Glucose
(6 x C) + (12 x H) + (O x 6)
= (6 x 12) + (12 x 1) + (16 x 6)
= 72 + 12 + 96
= 180
Slide 16 - Slide
Write down the atoms of each element in aluminium oxide
Slide 17 - Open question
Write down the atoms of each element in hydrochlroic acid
Slide 18 - Open question
Write down the atoms of each element in methane
Slide 19 - Open question
Write down the atoms of each element in copper sulfate
Slide 20 - Open question
Write down the atoms of each element in sodium chloride
Slide 21 - Open question
Write down the atoms of each element in magnesium oxide
Slide 22 - Open question
Use your periodic table to work out the sum to calculate the relative formula mass of sodium chloride
Slide 23 - Open question
Use your periodic table to work out the sum to calculate the relative formula mass of magnesium oxide
Slide 24 - Open question
Use your periodic table to work out the sum to calculate the relative formula mass of Hydrochloric acid
Slide 25 - Open question
Use your periodic table to work out the sum to calculate the relative formula mass of methane
Slide 26 - Open question
Use your periodic table to work out the sum to calculate the relative formula mass of aluminium oxide
Slide 27 - Open question
Use your periodic table to work out the sum to calculate the relative formula mass of glucose
Slide 28 - Open question
Use your periodic table to work out the sum to calculate the relative formula mass of copper sulfate
Slide 29 - Open question
Which chemical is this the formula mass sum for?
12 + (16 x 2)
A
B
C
D
Slide 30 - Quiz
Which chemical is this the formula mass sum for?
23 + 16 + 1
A
NaOH
B
NaBr
C
HBr
D
KOH
Slide 31 - Quiz
Which chemical is this the formula mass sum for?
2 x 19
A
B
C
D
Slide 32 - Quiz
Which chemical is this the formula mass sum for?
1 + 14 + (16 x 3)
A
B
C
D
Slide 33 - Quiz
Which chemical is this the formula mass sum for?
14 + (3 x 1)
A
B
C
D
Slide 34 - Quiz
Congratulations. You just finished the formula mass lesson!
🥳
Slide 35 - Slide
How did it go?
😒
🙁
😐
🙂
😃
Slide 36 - Poll
What further learning are you going to complete?
Go through the lesson again on my own
Make flashcards with the key information
Use Seneca learning to go through this content
Do exam practice using physics maths tutor
Slide 37 - Poll
Need help?
Video
Watch th
is short video explaining formula mass:
https://www.youtube.com/watch?v=q49NwIrjaFw
Support
Go to a revision website to spend more time learning:
https://www.elevise.co.uk/gac3a.html
https://senecalearning.com/en-GB/
Slide 38 - Slide
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