jdurg Posted March 2, 2005 Posted March 2, 2005 Why is Ca2+ not a calcium atom and Ca0 is? They both have 20 protons.
budullewraagh Posted March 2, 2005 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
jdurg Posted March 2, 2005 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. )
Tetrahedrite Posted March 2, 2005 Posted March 2, 2005 I tend to agree with jdurg here....I was confused by the use of atom to describe the pure metal.
budullewraagh Posted March 2, 2005 Posted March 2, 2005 it would be impressive and that's why i used the word "theoretically"
chemistry Posted March 2, 2005 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).
budullewraagh Posted March 2, 2005 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.
Primarygun Posted March 3, 2005 Author Posted March 3, 2005 There are two reactions which will undergo if sodium oxide is put into a beaker of acid, right?
chemistry Posted March 3, 2005 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.
Primarygun Posted March 4, 2005 Author Posted March 4, 2005 For excess acid in the solution, all the calcium hydroxide will dissolve due to neutralization .
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