http://community.boredofstudies.org en Sat, 21 Nov 2009 02:02:50 GMT vBulletin 60 http://community.boredofstudies.org/images/misc/rss.jpg http://community.boredofstudies.org http://community.boredofstudies.org/showthread.php?t=228633&goto=newpost Sun, 15 Nov 2009 07:08:27 GMT Hi, i need help doing this question as i dont understand what to do -_- perchloric acid is the strongest of all acids. 2.512 g of solid perchloric acid, HClO4 is dissolved in water to make 1L of solution. a) calculate the ph of the solution b) calculate the pH of the solution if 0.2512 g... Hi, i need help doing this question as i dont understand what to do -_-

perchloric acid is the strongest of all acids. 2.512 g of solid perchloric acid, HClO4 is dissolved in water to make 1L of solution.

a) calculate the ph of the solution
b) calculate the pH of the solution if 0.2512 g are dissolved to make the litre of solution ]]> The Acidic Environment Qudans http://community.boredofstudies.org/showthread.php?t=228633 http://community.boredofstudies.org/showthread.php?t=227874&goto=newpost Mon, 09 Nov 2009 07:43:00 GMT Hi, I've received an assessment task in class recently and it is a report.

There are 5 questions, which I would like some help for.

- Assess the evidence which indicates increases in atmospheric concentration of oxides of sulfur and nitrogen
-Evaluate reasons for concern about the release of sulfur dioxide and oxides of nitrogen into the environment
-Explain the use of acids as food additives
-Outline the historical development of ideas about acids including those of Lavoisier, Davy and Arrhenius and trace the development in understanding and describing acid/base reactions
-Assess the use of neutralisation reactions as a safety measure or to minimise damage in accidents or chemical spills.

Does anyone have any links to sites, which may have information that can help me? ]]> The Acidic Environment Qudans http://community.boredofstudies.org/showthread.php?t=227874