Substitute for Methyl Orange?

Question

We're doing an experiment that measures how quickly antacids are neutralized when using Hydrochloric Acid, several antacids, and methyl orange as an indicator as to how fast the solution is neutralized (when it turns orange it is neutralized). Unfortunately we don't have methyl orange; we do however how litmus paper. Can we get some answers as to how we can use the litmus paper instead of the methyl orange? Is neutralized with methyl orange the same thing as a 7 with litmus paper (assuming the solution has become neutral)?

Answer 1

Yes, you can use litmus paper. However, you may also use phenolphthalein. That indicator turns RED-to-colorless very fast. Or colorless to RED very fast.