asid & bes
TRANSCRIPT
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ASID & BES
Asid
Bahan kimia yang menghasilkan ion H+
apabila dilarutkan dalam air
Ion H+ menjadikan sst bahan berasid
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Bahan kimia yang meneutralkan asid utk menghasilkan
garam & air
Alkali
Bes yang larut dalam air
Bes
Oksida logam &Hidroksida logam &
Karbonat logam
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Penceraian Asid Asid mencerai apabila dilarutkan dalam air.
HCl + H2O H+ + Cl-
H2SO4 + H2O 2H+ + SO4
2-
HNO3 + H2O H+ + NO3
-
CH3COOH + H2O H+ + CH3COO-
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Asid Kuat & Asid Lemah HCl + H2O H+
+ Cl- (100%)
asid hidroklorik
H2SO4 + H2O H+ + SO4
2- (100%)
asid sulfurik
HNO3 + H2O H+ + NO3
- (100%)
asid nitrik
CH3COOH + H2O H+ + CH3COO- (<100%)
asid etanoik
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Penceraian Alkali Alkali mencerai apabila dilarutkan dalam air.
NaOH + H2O Na+ + OH-
KOH + H2O K+ + OH-
NH4OH + H2O NH4+ + OH-
Mg(OH)2 + H2O Mg+ + 2OH-
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Alkali kuat & Alkali Lemah
NaOH + H2O Na+ + OH-
Natrium hidroksida
KOH + H2O K+ + OH-
Kalium hidroksida
NH4OH + H2O NH4+ + OH-
Ammonium hidroksida
Mg(OH)2 + H2O Mg+ + 2OH-
Magnesium hidroksida
(100%)
(100%)
(<100%)
(<100%)
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Asid kuat Asid lemah
Penceraian lengkap a/p dilarutkan dalam air
Penceraian tidak lengkap a/p dilarutkan dalam air
Kepekatan ion H+ tinggi Kepekatan ion H+ rendah
Alkali kuat Alkali lamah
Penceraian lengkap a/p dilarutkan dalam air
Penceraian tidak lengkap a/p dilarutkan dalam air
Kepekatan ion OH-
tinggiKepekatan ion OH-
rendah
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M1V1 = M2V2
M1 = 0.5 mol dm-3
M2 = ? V1=5cm3
V2 = 30 cm3
M2 = 0.0833 mol dm-3
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M1V1 = M2V2
M1 = ? mol dm-3
M2 = 0.025 mol dm-3 V1 = 20 cm3
V2 = (20+30) cm3
M1 = ? mol dm-3
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Kaedah Pentitratant/b peneutralan
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H2SO4 + 2NaOH Na2SO4 + 2H2OMa = ?
Mb = 0.1267Va=9.7Vb=25
a=1, b=2Ma=0.1633 mol dm-3
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