jdurg Posted March 2, 2005 Share Posted March 2, 2005 Why is Ca2+ not a calcium atom and Ca0 is? They both have 20 protons. Link to comment Share on other sites More sharing options...
budullewraagh Posted March 2, 2005 Share Posted March 2, 2005 Ca2+ is a calcium atom and i never said it wasnt. but really, as a rule of thumb you should refer to Ca+2 as calcium cations and Ca as calcium atoms Link to comment Share on other sites More sharing options...
jdurg Posted March 2, 2005 Share Posted March 2, 2005 Okay. I had just always been instructed to refer to it as calcium metal and not as a calcium atom. (Since that would be really impressive if you could move solitary atoms. ) Link to comment Share on other sites More sharing options...
Tetrahedrite Posted March 2, 2005 Share Posted March 2, 2005 I tend to agree with jdurg here....I was confused by the use of atom to describe the pure metal. Link to comment Share on other sites More sharing options...
budullewraagh Posted March 2, 2005 Share Posted March 2, 2005 it would be impressive and that's why i used the word "theoretically" Link to comment Share on other sites More sharing options...
chemistry Posted March 2, 2005 Share Posted March 2, 2005 You've got a reaction between a strong base and strong acid, the product salt will be weak with respect to its influence on pH, insignificant. At equivalence point, pH is 7. Depending on your desired pH add excess of one or the other. Calcium hydroxide will dissolve in acidic solutions (common ion effect). Link to comment Share on other sites More sharing options...
budullewraagh Posted March 2, 2005 Share Posted March 2, 2005 calcium hydroxide will not dissolve in acidic solutions. calcium hydroxide will react with the acid and the product may be soluble in the resulting conditions. Link to comment Share on other sites More sharing options...
Primarygun Posted March 3, 2005 Author Share Posted March 3, 2005 There are two reactions which will undergo if sodium oxide is put into a beaker of acid, right? Link to comment Share on other sites More sharing options...
budullewraagh Posted March 3, 2005 Share Posted March 3, 2005 it will form sodium hydroxide Link to comment Share on other sites More sharing options...
chemistry Posted March 3, 2005 Share Posted March 3, 2005 Calcium hydroxide as well as other ionic compounds dissolve to a certain extent in water , the degree to which it dissolves is given by the solubility constant, which indicates its saturation point. The solubility of calcium hydroxide increases in acidic solutions, particularly because one of its electrolyte components is hydroxide which will react with the strongest acid in the mixture. The solution once again becomes unsaturated and more calcium hydroxide solid will dissolve. Now what happens when you have enough acid in the solution? Figure it out. Link to comment Share on other sites More sharing options...
Primarygun Posted March 4, 2005 Author Share Posted March 4, 2005 For excess acid in the solution, all the calcium hydroxide will dissolve due to neutralization . Link to comment Share on other sites More sharing options...
chemistry Posted March 4, 2005 Share Posted March 4, 2005 Yep. Link to comment Share on other sites More sharing options...
Primarygun Posted March 5, 2005 Author Share Posted March 5, 2005 Thank you very much, friends. Link to comment Share on other sites More sharing options...
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