ELEMENTS OF LIFE NOTES

ELEMENTS OF LIFE NOTES

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Unit One ­ F331/01: Chemistry for Life [CHEMISTRY REVISION NOTES]
CHEMISTRY AS REVISION NOTES
UNIT 1 ­ F331/01: Chemistry for Life
OCR 21st Century specification
Made by Nabilah Chowdhury
Copyrighted
References: Various internet sources, sources from GetRevising, AS chemistry OCR textbook, CGP textbook
FORMULAE, EQUATIONS AND AMOUNT OF SUBSTANCE
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Unit One ­ F331/01: Chemistry for Life [CHEMISTRY REVISION NOTES]
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Unit One ­ F331/01: Chemistry for Life [CHEMISTRY REVISION NOTES]
ATOMIC STRUCTURE
Subatomic particle Mass Charge
Prot
on 1 +1
Neutr
on 1 0
El
ectron 1/
200 0
or
0.…read more

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Unit One ­ F331/01: Chemistry for Life [CHEMISTRY REVISION NOTES]
At
omi
c Absorption Spect
ra:
1. Whi
te
li
ght
i
s a
cont
inuous
spect
rum
of
EMR ­
has
all
t
he
col
our
s of
t
he
rai
nbow
2. EMR passes
thr
ough
the
element
3. The
elect
rons
(i
n t
he
atom)
absor
b s
p eci
fi
c f
requenci
es
of
EMR
4.…read more

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Unit One ­ F331/01: Chemistry for Life [CHEMISTRY REVISION NOTES]
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Unit One ­ F331/01: Chemistry for Life [CHEMISTRY REVISION NOTES]
One
phot
on
of
l
ight
i
s equal
t
o one
quant
um
of
ener
gy.
To
fi
nd
the
quant
um,
or
phot
on,
you
use:
Change in energy = Planck Constant x frequency
E = h x
1
(
J)
(JHz )
(Hz)
A
higher
change
in
ener
gy
equal
t
o a
higher
f
requency
of
EMR i
s absor
bed
/
emi
tt
ed.
Planck Constant = 6.…read more

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Unit One ­ F331/01: Chemistry for Life [CHEMISTRY REVISION NOTES]
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Unit One ­ F331/01: Chemistry for Life [CHEMISTRY REVISION NOTES]
E.g. halflife of C14 is 5730 years.…read more

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Unit One ­ F331/01: Chemistry for Life [CHEMISTRY REVISION NOTES]
2 25
1
hal
fli
fe
takes
5730
year
s.
So,
2
hal
fli
ves
must
t
ake
(5730
x 2)
=
11460
year
s
E.g. A radioisotope has count rate of 52mins1. Fours hours later the count rate 13 counts mins1.…read more

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