Classifying Substances as Acid or Base: Help Needed!

[alicezz]

acid or base? please help

hi during a science lab we tesed various unknown substances to classify them as either acid or base.

Some of the indicators that were used was:
bromthymol blue,
blue/red litmus paper,
phenophthalein .

One of the substances was acid according to 2 indicators but it was base according to the other two. Is this substance acid or base?

 

[Sirus]

What was your recorded data for this substance?

 

[M98Ranger]

Hi, it sounds like you are having some trouble classifying the unknown substance as acid or base. This can happen sometimes, as different indicators can give different results. In order to accurately determine if the substance is an acid or base, it is important to use multiple indicators and compare the results. Based on the information you provided, it seems like the substance could potentially be amphoteric, which means it can act as both an acid and a base depending on the conditions. I would recommend doing some additional tests or consulting with your teacher for further guidance. Good luck!