# HSC Chemistry Formula and Data Sheet

View the HSC Chemistry Formula and Data Sheet provided in the HSC Exam. Get familiar with the Chemistry formulas, constants and data required to answer Chemistry exam questions.

## What is the HSC Chemistry Formula and Data Sheet?

All students are provided with the Chemistry Formula and Data Sheet in the HSC Chemistry Exam.

The HSC Chemistry formula sheet contains formulas of key Chemistry concepts and frequently used constants that are taught in the Year 11 & 12 Chemistry course.

The HSC Chemistry Data Sheet consists of

## HSC Chemistry Formulae Sheet

 $n = \dfrac{m}{MM}$ $c=\dfrac{n}{V}$ $q=mc \Delta T$ $\Delta G\degree = \Delta H \degree - T\Delta S\degree$ $pK_a=-log_{10}[K_a]$ $A=\epsilon lc = log_{10}\dfrac{I_0}{I}$ $PV=nRT$ $pH = -log_{10}[H^+]$

 Avogadro’s constant, NA 6.022 × 1023 mol-1 Volume of 1 mole of ideal gas: at 100kPa and at 0˚C (273.15K) 22.71 L at 25˚C (298.15K) 24.79 L Gas constant 8.314 J mol-1 K-1 Ionisation constant for water at 25˚C (298.15K), Kw 1.0 × 10-14 Specific heat capacity of water 4.18 × 103 J kg-1 K-1

## HSC Chemistry Data Sheet

### Solubility constants at 25˚C

 Compound Ksp Compound Ksp Barium carbonate 2.58×10-9 Lead(II) bromide 6.60×10-6 Barium hydroxide 2.55×10-4 Lead(II) chloride 1.70×10-5 Barium phosphate 1.3×10-29 Lead(II) iodide 9.8×10-9 Barium sulfate 1.08×10-10 Lead(II) carbonate 7.40×10-14 Calcium carbonate 3.36×10-9 Lead(II) hydroxide 1.43×10-15 Calcium hydroxide 5.02×10-6 Lead(II) phosphate 8.0×10-43 Calcium phosphate 2.07×10-29 Lead(II) sulfate 2.53×10-8 Calcium sulfate 4.93×10-5 Magnesium carbonate 6.82×10-6 Copper(II) carbonate 1.4×10-10 Magnesium hydroxide 5.61×10-12 Copper(II) hydroxide 2.2×10-20 Magnesium phosphate 1.04×10-24 Copper(II) phosphate 1.40×10-37 Silver bromide 5.35×10-13 Iron(II) carbonate 3.13×10-11 Silver chloride 1.77×10-10 Iron(II) hydroxide 4.87×10-17 Silver carbonate 8.46×10-12 Iron(III) hydroxide 2.79×10-39 Silver hydroxide 2.0 ×10-8 Iron(III) phosphate 9.91×10-16 Silver iodide 8.52×10-17 Silver phosphate 8.89×10-17 Silver sulfate 1.20×10-5

### Infrared absorption data

 Bond Wavenumber / cm-1 N—H (amines) 3300 – 3500 O—H (alcohols) 3230 – 3550 (broad) C—H 2850 – 3300 O—H (acids) 2500 – 3000 (very broad) C$\equiv$N 2220 – 2260 C$=$O 1680 – 1750 C$=$C 1620 – 1680 C—O 1000 – 1300 C—C 750 – 1100

### 13C NMR chemical data shift

 Type of carbon $\delta$/ppm 5 – 40 10 – 70 20 – 50 25 – 60 alcohols, ethers or esters 50 – 90 90 – 150 110 – 125 110 – 160 esters or acids 160 – 185 aldehydes or ketones 190 – 220

### UV absorption

(This is not a definitive list and is approximate.)

 Chromophore $\lambda_{max}$ (nm) C—H 122 C—C 135 C$=$C 162 C$\equiv$C 173            178 196            222 C—Cl 173 C—Br 208

### Some standard potentials

 K+ + e‾ $\leftrightharpoons$ K(s) -2.94 V Ba2+ + 2e‾ $\leftrightharpoons$ Ba(s) -2.91 V Ca2+ + 2e‾ $\leftrightharpoons$ Ca(s) -2.87 V Na+ + e‾ $\leftrightharpoons$ Na(s) -2.71 V Mg2+ + 2e‾ $\leftrightharpoons$ Mg(s) -2.36 V Al3+ + 3e‾ $\leftrightharpoons$ Al(s) -1.68 V Mn2+ + 2e‾ $\leftrightharpoons$ Mn(s) -1.18 V H2O + e‾ $\leftrightharpoons$ $\dfrac{1}{2}$ H2(g) + OH‾ -0.83 V Zn2+ + 2e‾ $\leftrightharpoons$ Zn(s) -0.76 V Fe2+ + 2e‾ $\leftrightharpoons$ Fe(s) -0.44 V Ni2+ + 2e‾ $\leftrightharpoons$ Ni(s) -0.24 V Sn2+ + 2e‾ $\leftrightharpoons$ Sn(s) -0.14 V Pb2+ + 2e‾ $\leftrightharpoons$ Pb(s) -0.13 V H+ + e‾ $\leftrightharpoons$ $\dfrac{1}{2}$ H2(g) 0.00 V SO42- + 4H+ + 2e‾ $\leftrightharpoons$ SO2(aq) + 2H2O 0.16 V Cu2+ + 2e‾ $\leftrightharpoons$ Cu(s) 0.34 V $\dfrac{1}{2}$O2(g) + H2O + 2e‾ $\leftrightharpoons$ 2OH‾ 0.40 V Cu+ + e‾ $\leftrightharpoons$ Cu(s) 0.52 V $\dfrac{1}{2}$I2(s)+ e‾ $\leftrightharpoons$ I‾ 0.54 V $\dfrac{1}{2}$I2(aq) + e‾ $\leftrightharpoons$ I‾ 0.62 V Fe3+ + e‾ $\leftrightharpoons$ Fe2+ 0.77 V Ag+ + e‾ $\leftrightharpoons$ Ag(s) 0.80 V $\dfrac{1}{2}$Br(l) + e‾ $\leftrightharpoons$ Br‾ 1.08 V $\dfrac{1}{2}$Br2(aq) + e‾ $\leftrightharpoons$ Br‾ 1.10 V $\dfrac{1}{2}$O2(g) + 2H++ 2e‾ $\leftrightharpoons$ H2O 1.23 V $\dfrac{1}{2}$Cl2(g)+e‾ $\leftrightharpoons$ Cl‾ 1.36 V $\dfrac{1}{2}$Cr2O72‾+ 7H+ + 3e‾ $\leftrightharpoons$ Cr3+ + $\dfrac{7}{2}$ H2O 1.36 V $\dfrac{1}{2}$Cl2(aq) + e‾ $\leftrightharpoons$ Cl‾ 1.40 V MnO4– + 8H+ + 5e‾ $\leftrightharpoons$ Mn2+ + 4H2O 1.51 V $\dfrac{1}{2}$ F2(g) + e‾ $\leftrightharpoons$ F‾ 2.89 V

Source: NSW Education Standards Authority

### Written by Hee-Chan Jang

Hee-Chan is the author of Chemistry resources on Learnable. He loves teaching and helping students to "learn smarter", using his multidisciplinary knowledge of science and engineering. He is also currently completing his doctoral degree in mineral processing at The University of Sydney.