Book: https://pressbooks.bccampus.ca/hydrometallurgy/

Date: October 4th, 2023

Issue: Sometimes her LaTeX works, sometimes it doesn’t

• LaTeX in Chapter 1 works
• LaTeX in other chapters (Chapter 2 and Agitation chapter) doesn’t work

She’s using “$$ __ $$“, which doesn’t show up in PDFs

• Warn her about that

Solution:

All LaTeX in Chapter 1:

$$ CuO_{s}+H_{2}O_{l} = Cu^{+2}_{aq} + 2OH^{-}_{aq}\:\:\:\:\:\:\:\:\:\:K_{sp}+2.2\times 10^{-21} \tag{1} $$
$$ 2OH^{-}\:_{aq} + 2H^{+}\:_{aq} = 2H_{2}O_{1}\:\:\:\:\:\:\:\:\:\:\:\:\:K=(1/K_{w})^{2}=1\times 10^{28} \tag{2} $$
$$ CuO_{s} + 2H^{+}\:_{aq} = Cu^{+2}\:_{aq} + H_{2}O_{l}\:\:\:\:\:\:\:\:\:K_{l} = K_{sp}/K_{w}^{2} = 2.2\times 10^{7} \tag{3} $$

$$ Fe^{+3}\:_{aq}\:+\: e^{-} = Fe^{+2}\:_{aq}\:\:\:\:\:\:\:\:\:\:E^{\circ} = 0.77\:V; \sim0.68 V in\:aq. \:H_{2}SO_{4} \tag{9} $$

$$ CuS_{s}+ 2Fe^{+3}\:_{aq} = Cu^{+2}\:_{aq} + 2Fe^{+2}\:_{aq} + S_{s} \tag{10} $$

$$ 2Fe^{+2}\:_{aq}+1/20_{2}\:_{g}+2H^{+}\:_{aq}=2Fe^{+3}\:_{ag}+H_{2}O_{l} \tag{11} $$

(By thiobacillus ferrooxidans)

$$ S_{s}\;+\:3/20_{2g}\:+\:H_{2}O_{l}\:=\:H_{2}SO_{4}\:_{aq} \tag{12} $$

$$ Cu_{2}S_ {s}\:+\:2Fe^{+3}\:_{aq}\: =\: Cu^{+2}\:_{aq}\:+\: 2Fe^{+2}\;_{aq}\:+\: CuS_{s} \tag{13} $$

$$ E\:=\:E^{\circ}\:-\:\frac{2.303RT}{F}log\frac{a_{Fe+2}}{a_{Fe+3}} \tag{14} $$

$$ pH\:=\:pK_{a}\:+\:log\frac{a_{A-}}{a_{HA}} \tag{15} $$

$$ Au^{+}\:_{aq}\:+\:e^{-}\:=\:Au_{s}\:\:\:\:\:\:\:\:\:\:E^{\circ}\:=\:1.69\:V \tag{16} $$

$$ Au^{+3}\:_{aq}\:+\:3e^{-}\:=\:Au\:_{s}\:\:\:\:\:\:\:\:\:\:E^{\circ}\:=\:1.41\:V \tag{17} $$

$$ O_{2\:g}\:+\:4H^{+}\:_{aq}\:+\:4e^{-}\:=\:2H_{2}O\:_{l}\:\:\:\:\:\:\:\:\:\:E^{\circ}\:=\:1.23\:V \tag{18} $$

$$2Au_{s}\:+\:4CN^{-}\:_{aq}\:+\:O_{2}\:_{g}\:+\:2H_{2}O\:_{l}\:=\:2[Au(CN)_{2}]^{-}\:+\:H_{2}O_{2}\:_{aq}\:+\:2OH^{-}\:_{aq} \tag{19} $$

$$ HCN_{aq}\:=\:H^{+}\:_{aq}\:+\:CN^{-}\:_{aq}\:\:\:\:\:\:\:\:\:\:K_{a}\:=\:5.25\:\times\:10^{-10};\:pK_{a}\:=\:9.28 \tag{20} $$

$$ HCN_{aq}\:=\:HCN_{g}\:\:\:\:\:\:\:\:\:\:K\:=\:0.1 \tag{21} $$

In basic solution:

$$ Al(OH)_{3}\:_{s}\:+\:OH^{-}\:=\:[Al(OH)_{4}]^{-}\:_{aq} \tag{22} $$

$$ Al(O)OH\:_{s}\:+\:H_{2}O_{l}\:+\:OH^{-}\:_{aq}\:=\:[Al(OH)_{4}]^{-}\:_{aq}\tag{23} $$

$$ 0.5\text{Al}_2O_{3s} + 1.5\text{H}_{2\text{O}_l} + \text{OH}^-{}_{\text{aq}} = [\text{Al}(\text{OH}_4)]^-{}_{\text{aq}}\tag{24} $$

In acid solution:

$$ Al(OH)_{3}\:_{s}\:+\:3H^{+}\:_{aq}\:=\:Al^{+3}\:_{aq}\:+3H_{2}O\:_{l}\tag{25} $$

$$ Al(O)OH\:_{s}\:+\:3H^{+}\:_{aq}\:=\:Al^{+3}\:_{aq}\:+\:2H_{2}O\:_{l}\tag{26} $$

$$ 0.5Al_{2}O_{3}\:_{s}\:+\:3H^{+}\:_{aq}\:=\:Al^{+3}\:_{aq}\:+\:1.5H_{2}O\:_{l}\tag{27} $$

$$ 2Al(OH)_{3}\:_{s}\:=Al_{2}O\:_{3}\:_{s}+3H_{2}0\;_{g}\;\;\;\;\;\Delta H^{\circ}=186\text{ kJ/mol} \tag{28} $$

$$ 2\:[Al(H_{2}0)_{6}]Cl_{3}\:=\:Al_{2}O_{3s}\:+\:6HCl_{g}\:+\:9H_{2}O_{g}\;\;\;\;\;\Delta H^{\circ}=959\text{ kJ/mol} \tag{29} $$

LaTeX in Chapter 2

$$ = 1.44\%\: CuFeS_{2} \tag{1} $$

LaTeX in Agitation chapter

$$ P = N p \rho N^3D^5 (Watts)\tag{1} $$

$$\begin{equation}\rho = fluid \:density  (kg/m^3)\end{equation}$$

$$ kg \:m^{-3} \times \:sec^{-3} \times \:m^5 = kg \:m \:sec^{-2} m\:sec^{-1} = N\: m \:sec^{-1} = J \:sec^1 = Watt\tag{4} $$

$${equation}Np=\frac{P}{N^3D^5\rho}\tag{4} $$

$$P \propto\rho N^3D^5 \tag{4} $$

Testing new delimiters:

Shortcode syntax:

Dollar sign syntax:
$latex e^{i \pi} + 1 = 0$

Double dollar sign syntax:
$$ e^{i \pi} + 1 = 0$$

Equation doesn’t fully render for Erin:

*** QuickLaTeX cannot compile formula:
\frac{\text{5000gCu}}{\text{t ore}} \times \frac{\text{1 molCu}}{\text{63.546gCu}}\times \frac{\text{1molCuFeS2}}{\text{1molCu}}\times \frac{\text{185.513gCuFeS_2}}{\text{molCuFeS_2}} = \frac{\text{14,439gCuFeS_2}}{\text{t ore}}

*** Error message:
Missing $ inserted.
leading text: ...{\text{185.513gCuFeS_2}}{\text{molCuFeS_2}}
Extra }, or forgotten $.
leading text: ...{\text{185.513gCuFeS_2}}{\text{molCuFeS_2}}
Extra }, or forgotten $.
leading text: ...{\text{185.513gCuFeS_2}}{\text{molCuFeS_2}}
Extra }, or forgotten $.
leading text: ...{\text{185.513gCuFeS_2}}{\text{molCuFeS_2}}
Missing $ inserted.
leading text: ...{\text{185.513gCuFeS_2}}{\text{molCuFeS_2}}
Extra }, or forgotten $.
leading text: ...{\text{185.513gCuFeS_2}}{\text{molCuFeS_2}}
Extra }, or forgotten $.
leading text: ...{\text{185.513gCuFeS_2}}{\text{molCuFeS_2}}
Extra }, or forgotten $.
leading text: ...{\text{185.513gCuFeS_2}}{\text{molCuFeS_2}}
Missing $ inserted.
leading text: ...{\text{185.513gCuFeS_2}}{\text{molCuFeS_2}}

x x x =

Fixed it by toggling the background colour on and off in her book.

Trying to make all equations not so big in PDF

Here is some text and here is LaTeX that isn’t changed: . Here is trailing text

Here is some text and here is LaTeX that I want “normalsize”: . Here is trailing text.

Here is some text and here is LaTeX that I want “small”: . Here is trailing text.