# Sorbent Prep Here, I'll show you how to prepare the sorbent for carbon capture. This is needed because the resin is not ready to go from the factory. From the factory, the ion attached to the functional group of the resin is a chloride ion. We want to change this ion out for either a hydroxide ion or a carbonate ion. Here, I'm exchanging the ion for a carbonate ion because I don't really want to handle hydroxide in my kitchen. Also, if you're a chemistry wizard, you can collect the water from the rinsing of the resin after each wash to see how many chloride ions are in the water by using the Mohr method. Again, I'm in a kitchen, so I'm not going to do that. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://nicholsonlabs.gitbook.io/labs/carbon-capture/sorbent-prep.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.