Experimental work (2) Answers

IB Chemistry: Experimental work (2) Answers

Answers to Experimental work Question 2or CO32−(s) + 2H+(aq) → CO2(g) + H2O(l)(b) The carbon dioxide gas evolved causes effervescence so the cotton wool prevents any of the liquid escaping from the flask. [1](c) The end point occurs when the addition of one drop of the sodium hydroxide solution causes a faint pink colour to remain.[1](Note that the colour changes for common indicators are given in Section 22 of the...


To access the entire contents of this site, you need to log in or subscribe to it..

Click the free stuff button on the home page to access free pages or check the blog (which is also free).

All materials on this website are for the exclusive use of teachers and students at subscribing schools for the period of their subscription. Any unauthorised copying or posting of materials on other websites is an infringement of our copyright and could result in your account being blocked and legal action being taken against you.