Graphics, Figures & Tables ⇒ Acid-Base Pairs

[ghostanime2001]

How do you produce acid-base lines with chemical equations? Sort of like redox lines but for conjugate acid-base pairs. Also how do you make the lines flow below the chemical reaction?

[cgnieder]

I do not know what you mean by making lines flow. I also don't know what you mean by acid-base lines? Do you mean a line which connects them visually above or below the equation? You could "misuse" chemmacros' \redox command:

Code: Select all

\documentclass{article}
\usepackage{chemmacros}

\begin{document}

\ce{\OX{b1,CO3^2-} + \OX{a2,H2O} <=>  \OX{a1,HCO3-} + \OX{b2,OH-}}
\redox(b1,a1){} \redox(b2,a2)[][-1]{}

\end{document}

[ghostanime2001]

This is what I mean. Can this code be improved?

Code: Select all

\ce{$\underset{\clap{\begin{tabular}[t]{@{}c@{}}\Rnode{A}{acid}\end{tabular}}}{\ce{HCO3-}}$ + $\underset{\clap{\begin{tabular}[t]{@{}c@{}}\Rnode{B}{base}\end{tabular}}}{\ce{S^{2-}}}$ <=> $\underset{\clap{\begin{tabular}[t]{@{}c@{}}\Rnode{C}{base}\end{tabular}}}{\ce{CO3^{2-}}}$ + $\underset{\clap{\begin{tabular}[t]{@{}c@{}}\Rnode{D}{acid}\end{tabular}}}{\ce{HS-}}$}
\ncbar[linewidth=0.1pt,angle=-90,nodesep=3pt,arm=0.5em]{A}{C}
\ncbar[linewidth=0.1pt,angle=-90,nodesep=3pt,arm=1.1em]{B}{D}

[cgnieder]

Please add a compilable minimal example.

[ghostanime2001]

Compile with XeLaTeX

Code: Select all

\documentclass[fleqn]{article} 
\usepackage{amsfonts}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{amstext}
\usepackage{amsthm}
\usepackage{array}
\usepackage{booktabs}
\usepackage{calc}
\usepackage{cancel}
\usepackage{chemfig}
\usepackage{chemmacros}
\usepackage[shortlabels,inline]{enumitem}
\usepackage{fix-cm}
\usepackage[T1]{fontenc}
\usepackage{fouridx}
\usepackage{fullpage} 
\usepackage[margin=1in]{geometry} 
\usepackage{graphicx}
\usepackage[utf8]{inputenc}
\usepackage{lewis}
\usepackage{mathtools}
\usepackage[version=3]{mhchem}
\usepackage{multienum}
\usepackage{multirow}
\usepackage{pbox}
\usepackage{pgfkeys}
\usepackage{pifont}
\usepackage{pstricks}
\usepackage{pst-node}
\usepackage{pst-plot}
\usepackage{siunitx}
\usepackage{textcomp}
\usepackage{tikz}
\usepackage{type1cm}
\usepackage{ulem}
\usepackage{wasysym}
\usepackage{xfrac}
\usepackage{xspace}
\setlength{\parindent}{0in}
\setlength{\parskip}{0in}
\setlength{\mathindent}{0in}
\newlist{longenum}{enumerate}{6}
\setlist[longenum,1]{label=\arabic*.}
\setlist[longenum,2]{label=\alph*)}
\setlist[longenum,3]{label=\alph*)}
\setlist[longenum,4]{label=\alph*)}
\setlist[longenum,5]{label=\alph*)}
\setlist[longenum,6]{label=\alph*)}
\newcommand{\since}{\raisebox{0.56pt}{\rotatebox[origin=c]{180}{$\Large\wasytherefore$}}}
\newcommand{\thus}{\Large{\wasytherefore}}
\newcommand{\s}{\par\medskip}
\newcommand{\ssa}{\\ \addlinespace[\smallskipamount]}
\newcommand{\msa}{\\ \addlinespace[\medskipamount]}
\newcommand{\bsa}{\\ \addlinespace[\bigskipamount]}
\allowdisplaybreaks
\pagestyle{empty}
\begin{document}
\ce{$\underset{\clap{\begin{tabular}[t]{@{}c@{}}\Rnode{A}{acid}\end{tabular}}}{\ce{HCO3-}}$ + $\underset{\clap{\begin{tabular}[t]{@{}c@{}}\Rnode{B}{base}\end{tabular}}}{\ce{S^{2-}}}$ <=> $\underset{\clap{\begin{tabular}[t]{@{}c@{}}\Rnode{C}{base}\end{tabular}}}{\ce{CO3^{2-}}}$ + $\underset{\clap{\begin{tabular}[t]{@{}c@{}}\Rnode{D}{acid}\end{tabular}}}{\ce{HS-}}$}
\ncbar[linewidth=0.1pt,angle=-90,nodesep=3pt,arm=0.5em]{A}{C}
\ncbar[linewidth=0.1pt,angle=-90,nodesep=3pt,arm=1.1em]{B}{D}
\end{document}

[cgnieder]

The result looks fine to me. What is it exactly you want to improve?

BTW: your example code is far from being minimal. For example you're loading lot's of packages twice: siunitx, tikz, xfrac, xspace, mhchem and mathtools (=improved amsmath) are already loaded by chemmacros.
This:

Code: Select all

\usepackage{siunitx,tikz,xfrac,xspace,amsmath,chemmacros}
\usepackage[version=3]{mhchem}

and this

Code: Select all

\usepackage{chemmacros}

will work the same way

[ghostanime2001]

So i can substitute all those packages with just 1 package?

[cgnieder]

This is no substitution. These packages are loaded anyway by chemmacros, if you need them or not. tikz for example is also loaded by chemfig so if you use the latter you won't have to load tikz by yourself.