Chemistry paper 3 acids

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5 Terms

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monoprotic acids

acid:alkali ratio

  • Hydrochloric Acid (HCl)

  • Nitric Acid (HNO3)

  • Hydrobromic Acid (HBr)

  • Hydroiodic Acid (HI)

  • Ethanoic acid

  • Methanoic acid

  • Hydroflouric acid (aqueous solution of hydrogen fluoride)

  • Molar Ratio 1:1

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Diprotic acid or dibasic

molar ratio of acid:alkali

Sulfuric acid (H2SO4)

  • Carbonic acid (H2CO3)

  • Oxalic acid (H2C2O4)

  • hydrogen sulfide H2S

    chromic acid H2CrO4

    2:2

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Triprotic acid

ratio of acid:alkali

Phosphoric acid H3PO4

Citric acid C6H8O7

ratio 1:3

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rules to remember

volume of FB1 taken from burette so it’s recorded to 2decimal places,

and water as well while time is recorded to the nearest second so no decimal places

rate is calculated to 3 segnificant figures

ΔT present so %erorr in time may be ±1 seconds (or ± 2 seconds in some experiments if you’re told)

as the time increases %error decreases

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round to how many fig

3 sf