\documentclass[11pt]{article}
\usepackage{mathpazo}
\usepackage[version=3]{mhchem}
\usepackage{amsmath}
\usepackage{siunitx}
\newenvironment{myfont}{\fontfamily{augie}\selectfont}{\par}
\begin{document}
\begin{myfont}
\begin{align*}
\text{moles of \ce{Fe^{+2}} in 1 L } &= \frac{50.01 \times 10^-{3}}{392.14} \\[\jot]
&= \SI{0.0001275}{\mol}
\end{align*}
\end{myfont}
\end{document}
How do I make the whole thing look handwritten?
\text
inside the fraction to pick up the text font there too.\text{moles of \ce{Fe^{+2}} in 1 L } &\text{=} \frac{\text{50.01} \times \text{10}^\text{-3}}{\text{392.14}} \\[\jot] &\text{=} \text{0.0001275 mol}
?\times
symbol, does it?