ABHILAsh D. READ THIs?

Question

im in 11th grade chem 1 honors and our teacher never shows up to class to help, what is titrate and what is methyl orange? will i be able to find these? and what how would we test .1N HCL?

Answer 1

Titration is the finding of the concentration of a chemical in one solution by reacting it with a second solution of a known concentration of a chemical that reacts with the first.

For example, if you have a solution of NaOH of unknown concentration, you would measure out a known amount (mL). Then you would run a solution of known 0.1N HCl into it to see how much is required to neutralize it.

In order to know that the solution is neutralized, you need an indicator. In this case, an indicator is a few drops of dye solution that would change color suddenly. The pH of color change is called the end point.

One indicator for NaOH/HCl is methyl orange. This dye changed color between pH 3.1 abnd 4.4. Below 3.1, it is red; above 4.4 it is orange. Actually, you would like an indicator that changes color at pH 7, because that's the pH of neutral NaCl (the equivalence point). Methyl orange works pretty well with titrations of strong acids and strong bases, because things happen pretty fast at the end point.

Your school should furnish you with HCl, NaOH, and methyl orange.