-- Posted by Anonymous at 12:02 am on June 26, 2008 if i know that there is 3g of Na+ ions per 100g of biscuit for example then how do i find the concentration of the Na+ ions? -yes i know this is probably a stupid question. -- Posted by blufindr at 12:03 am on June 26, 2008 per 100g of biscuit?? lol 3% Na+, i guess. -- Posted by Kokasion at 12:05 am on June 26, 2008 Quote: from Anonymous at 12:02 am on June 26, 2008 if i know that there is 3g of Na+ ions per 100g of biscuit for example then how do i find the concentration of the Na+ ions?   -yes i know this is probably a stupid question. It's not Concentrated. XD It's not a game of playing Needle in the Hay Stack. It's dispersed throughout the entire 100g. Of course, with a chemistry set, there's probably a way to extract it. But that way, I'm not aware of. -- Posted by Anonymous at 12:21 am on June 26, 2008 lol figured it out, you just can't get it in mol-1 dm-3