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Summary A2 Unit 2: Chemistry in Medicine

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Summary of Chemistry in Medicine for Chemistry A2 Unit 2 CCEA GCE

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Indigestion Remedies

What is indigestion
Caused HCI instomach
byexcess
remedies neutralise portion
indigestion ofHCI in stomach reducingstomachacid tonormallevels

Remedies
oftencalled antacids
made
ofmetalhydroxides
carbonates or hydrocarbonates


Hydroxides Mgonly 2H11 2H20 Mgl12
Carbonates
Caloz 2H01 Cally H2o Co2

carbonate
Hydrogen Nahlog HCl Nacl H2o Co2
atbaikfibin.tnus
activeingredientin an indigestionremedy is determined
Percentage
of using
BackTitration a titration methodwherean excess reagant is reactedwithin a sample The
unreacted oftitration
reagent is
determined
by
cg 1.12g of eggshell was reached with20cm of 2M HCI I solnmadeupto 250cm in
flash 25cm ofthissoln completely reactedwith 18.6cm of 0 IM Naon
volumetric Calculate

eggshell
Calcium carbonate in
percentage
of
Caloz 24cL Call H2o Co2
NaOH HCL Nace H2o
1
801 0 00186 in25cm
a d
21
0 0186in250cm
0.04 in 250cm
NaOH UCC
0.0180 0.0186
81 8 8 07

0 0107
0
M 107g
i 1
1 100 ns.s

, Skin Treatments

What is acidmantle
thin protectivelayeron surface skin
made upofwater l
of
fattyacids
Gives skinsurface
ph of 4 5
Purpose acidmantle
ofskin
protects barrier tobacteria viruses
providing
Blood isalkaline acid shin alkalineblood protectbodyfurtherbyensuringadapting bacterial
viruses can'tsurvive
Acts as
self cleaning mechanism
Whathappens pHofacid monthdisrupted
Pores if blocked acne
may become
causing
Shin
maydryout
Factors affecting shin
pH
pHof cleaningproducts
frequency
of washing

Effves'antic
monthwheredirte bacteriamaybetrapped
Slightlyacidictoensure acidmantleis not disrupted

WartTreatment
Watscaused HPV
by
Causes excessive keratin to beproduced on toplayerofskin
Corrosivechemicalsused
to treat ey salicylicacid I chloroethanoic acid

Treatingeyediseasewithsilvernitrate

goodat fighting staphylococcus l E Coli
Silvernitratehas antibactorial properties
Dropsusedtotreat conjunctivitis passedfrommother tonewborn childbirth
during

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