Reaction 2-Cupric Nitrate to Cupric Hydroxide

Cu(NO3)2(aq) + 2NaOH(aq) --> Cu(OH)2(s) + 2NaNO3(aq)

Add 5 ml 8m NaOH to solution. Allow precipitate to settle. Test acidity of the liquid, should turn paper blue, so liquid is basic.

ACCURATE! :)

Sarah was accurate by getting down on eye level with the graduated cylinder and measuring the exact amount of NaOH.

PRECIPITATE! ;)

This is a double replacement reaction. The NO3 switches from the Cu to the Na and the OH switches from the Na to Cu. The reaction forms a precipitate (or solid), which is its driving force. This solid was formed because together, Na and NO3 are insoluble.