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Planning and designing experiments

Asked by beauty_queen_4_lyphe 8 months ago, 1 answer.

Number 1
Problem: Gregory had an argument with his sister about samples of water that would form a permanent lather with blue bomber soap. A permanent lather they agreed form bubbles that last for a minute or more without collapsing. The samples...

discussed were salt water, tap water and distilled water. Plan and design an experiment to determine which of these form a permanent lather with blue bomber soap.

Number 2
A group of students were working with potassium permanganate in the labaratory. It is discovered that the burettes were stained brown after potassium permanganate solution was left in them for some time. Plan and design an experiment to determine which reagent - potassium dichromate solution, bleach or hydrogen peroxide - is most suitable to remove the stain caused by the potassium permanganate solution.

CAN YOU HELP ME PLEASE! AND THANKS VERY MUCH!

Answered by icehockeyguy on Mar 13, 2009, 09:20AM
8 answers

Hi,

I'm sorry but it would be best if you at least thought of a concept on your own, and then we could give you feedback/ideas/help tweaking it.

Asking us to do the entire thing is a little different...

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