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Mechanisms on A-Level Chemistry

Mechanisms on A-Level Chemistry

Last update 

Mechanisms on A-Level Chemistry

Items (41)

  • Alkane → Alkene

    Cracking, Al₂O₃, 500°C

  • Alkene → Alkane

    Hydrogenation, Ni, 150°C

  • Carboxylic Acid → Carboxilate Salt

    NaOH

  • Alkane → Haloalkane

    FRS, UV light, X₂

  • Alkene → Alkyle Hydrogen Sulphate

    A, Concetrated H₂SO₄

  • Alkyle Hydrogen Sulphate → Alcohol

    Hydrolysis, H₂O

  • Alkene → Haloalkane

    EA, Room temp, HX

  • Haloalkane → Alkene

    E, Heat + Enthanol, NaOH

  • Alkene → Alcohol

    H, High P&T, H₃PO₄ Catalyst, Excess H₂O

  • Haloalkane → Nitrile

    NS, Heat under Reflux, KCN

  • Alcohol → Alkene

    D, 180°C & Concentrated H₂SO₄

  • Alkyl Halide → Amide

    A-E, Cold & Concentrated, RNH₂

  • Alcohol → Ester

    Concentrated H₂SO₄, ROOH

  • Carboxylic Acid → Ester

    Concentrated H₂SO₄, ROH

  • Alcohol → Haloalkane

    NS, Heat, HBr

  • Haloalkane → Amine

    NS, High P&T, Excess NH₃

  • Haloalkane → Alcohol

    NS, KOH

  • Alcohol → Aldehyde

    O, Distil & Excess Alcohol, K₂Cr₂O₇ & H⁺

  • Alcohol → Ketone

    O, Heat under Reflux, Excess K₂Cr₂O₇ & H⁺

  • Alcohol → Carboxylic Acid

    2(O), Heat under Reflux, Excess K₂Cr₂O₇ & H⁺

  • Alkyl Halide → Carboxylic Acid

    A-E, Cold, H₂O

  • Alkyl Halide → Amine

    A-E, Cold & Concentrated, NH₃

  • Aldehyde → Carboxylic Acid

    O, Heat under Reflux, Excess K₂Cr₂O₇ & H⁺

  • Alkyl Halide → Ester

    A-E, Cold, ROH

  • Rate Equation = aA + bB → cC + dD

    r=k(A)ᵐ(B)ᵑ

  • Eqm Constant = aA + bB → cC + dD

    Kc=((C)ᶜ(D)ᵈ)/((A)ᵃ(B)ᵇ)

  • Kc is affected by?

    Temp

  • K is affected by?

    Temp

  • pH formula

    pH=-log₁₀(H⁺)

  • Kᵚ at 298 K

    1X10⁻¹⁴

  • Kᵚ Formula

    Kᵚ = (OH⁻)(H⁺)

  • Kᵃ Formula

    Kᵃ = ((A⁻)(H⁺))/(HA)

  • Strong Acid

    Kᵃ > 1

  • Weak Acid

    Kᵃ < 1

  • Amphoteric

    Act as both an acid and a base

  • Kᶜ(H₂O) = ?

    Both

  • What is Kᵃ ?

    Acid dissociation constant

  • pKᵃ = ?

    -log₁₀(Kᵃ )

  • Half-Neutralisation

    pH = pKᵃ

  • When do you have Optical Isomers ?

    4 dif. groups (around C)

  • Chiral molecules in polaroids?

    Can see through both ways