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nafan
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#1
Report Thread starter 16 years ago
#1
hey, can anyone help me with this, i really need some help with this question:

"you are required to plan an invetigation to find out if there is a relationship between cell size & diffusion

(cells of agar made with sodium carbonate & containing phenopthalein (a ph indicator change colour when they are placed into a dilute acid. as the acid diffuses through the block, the ph changes & the pink colour of the indicator dissapears
your planning must be based on the assumption that you are provided with the following:
*blocks of agar
*a ph indicator (may be cut to size)
*supply of 2M hydrochloric
*your scools labs resouces


any help appreciated!!!
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