Tools · Chemistry

VCE Chemistry formula & data sheet

Key formulas and constants for VCE Chemistry Units 3 & 4: moles and concentration, gases, acids and bases, energy and electrolysis.

Moles & concentration

  • Moles from massn=mMn=\dfrac{m}{M}
  • Moles from numbern=NNAn=\dfrac{N}{N_A}
  • Concentrationc=nVc=\dfrac{n}{V}
  • Dilutionc1V1=c2V2c_1V_1=c_2V_2

Gases

  • Ideal gas lawpV=nRTpV=nRT
  • Combined gas lawp1V1T1=p2V2T2\dfrac{p_1V_1}{T_1}=\dfrac{p_2V_2}{T_2}

Acids & bases

  • pH=−log⁡10[\ceH+]\text{pH}=-\log_{10}[\ce{H+}]
  • [\ceH+][\ceOH−]=10−14 (at 25∘C)[\ce{H+}][\ce{OH-}]=10^{-14}\ \text{(at 25}^\circ\text{C)}
  • pH+pOH=14\text{pH}+\text{pOH}=14

Energy & electrolysis

  • Heat energyq=mcΔTq=mc\Delta T
  • ChargeQ=It,n(e−)=QFQ=It,\quad n(e^-)=\dfrac{Q}{F}

Useful constants

  • NA=6.02×1023 mol−1N_A=6.02\times10^{23}\ \text{mol}^{-1}
  • R=8.31 J K−1mol−1R=8.31\ \text{J K}^{-1}\text{mol}^{-1}
  • F=96 500 C mol−1F=96\,500\ \text{C mol}^{-1}

A study reference compiled by ATAR99. The official VCAA formula/data sheet is provided in your exam — always use that as the authority on the day.

Know the formulas — now use them

Practise past-exam-style Chemistry papers and get your answers marked mark-by-mark.

← All tools