Doing a science experiment with low ph's dissolving chalk. The chalk dissolves in oj, yet in cola it does not? Why? is it the carbonation or the phosphoric acid vs citric or ???? Thank you
2006-10-17 03:30:54 · 5 answers · asked by MM 1 in Science & Mathematics ➔ Chemistry
Did the chalk dissolve in the solution because the solution had a low pH? or Did the chalk dissolve in the solution because citric acid is a chelant? Are we talking about low pH solutions that are not buffered, compared to pH solutions that are buffered? What was the normality of the respective acid solutions?
Your answer could be a combination of the above and a few more. My guess is that you are studying chelants and their effect on divalent cations.
2006-10-17 03:44:48 · answer #1 · answered by Mr Cellophane 6 · 0⤊ 0⤋
cola contains carbonic acid; chalk is mainly what, calcium carbonate? so i guess cola cannot dissolve chalk because they have the same components
2006-10-17 03:48:05 · answer #2 · answered by rykt_id 2 · 0⤊ 0⤋
perhaps the properties of phosphoric acid and citric acid on chalk.
2006-10-17 03:39:35 · answer #3 · answered by budaklolo 4 · 0⤊ 0⤋
I'm not sure, but my guess would be the sugar saturation level of the soda may have something to do with it rather than the acidity.
2006-10-17 03:39:33 · answer #4 · answered by Anonymous · 0⤊ 0⤋
cause it contains sulphuric acid
2006-10-17 03:40:05 · answer #5 · answered by Anonymous · 0⤊ 0⤋
yeah im on the same question. chem 102 lab. ncsu
2016-03-28 12:55:54 · answer #6 · answered by Aline 4 · 0⤊ 0⤋