The effect of blue litmus paper when it is dropped by the following a). Dilute hydrochloric acid
acid turns blue to red
Quaidoo
To determine the effect of dilute hydrochloric acid on blue litmus paper, you can follow these steps:
1. Obtain blue litmus paper: Blue litmus paper is a type of pH indicator that turns red in the presence of an acid and remains blue in the presence of a base or neutral substance. You can find blue litmus paper at science supply stores or online.
2. Prepare dilute hydrochloric acid: Dilute hydrochloric acid can be obtained by mixing concentrated hydrochloric acid with water. Be sure to follow appropriate safety precautions when handling and diluting the acid.
3. Perform the test: Take a piece of blue litmus paper and carefully drop it onto a clean, dry surface. It's important to handle the litmus paper with clean and dry hands to avoid contaminating the results.
4. Add a drop of dilute hydrochloric acid: Using a dropper or a clean glass rod, add a small drop of the dilute hydrochloric acid onto the blue litmus paper. Ensure that the drop of acid is concentrated enough to produce a noticeable reaction.
5. Observe the color change: After adding the drop of dilute hydrochloric acid, wait for a few seconds and observe any color change on the blue litmus paper. If the acid is indeed dilute hydrochloric acid, the blue litmus paper should turn red. This happens because hydrochloric acid is an example of an acid, and acids turn blue litmus paper red.
Remember that dilute hydrochloric acid is acidic and can be harmful, so always exercise caution when handling and disposing of chemicals. If you are conducting this experiment for educational purposes, make sure to follow proper safety guidelines and seek guidance from a teacher or experienced supervisor.