which of the following indicators would show an intermediate endpoint of color of orange: bromocresol green, methyl red, phenolphthalein or methyl violet?
No clue how to do this. And what does it mean to show an intermediate endpoint. Please help
2 answers
I would google each and read the details. I'm not sure what "intermediate endpoint" refers to either but I'm inclined to think it means "the end point color". Methyl orange is red in acid and yellow in base and orange at the endpoint. My quick hunch is that's the answer. Phenolphthalein is colorless to pink with no orange between. The others are a distinctcolor in acid/base form and have no orange anywhere between. The more I think about it the mpore I believe "intermediate endpoint of color" means "endpoint color".
Okay thank you so much. And yup you're right, methyl red is red is the only possible indicator. And yup that makes sense!