Add a different solution to each tube: NaF, NaCl, NaBr, NaI. 3. Add Ca(NO3)2 to each solution. 4. ... Add hexanes to those solutions and observe. 9. ... No Reactions There are two layers in all solutions. 6. ... There were two layers in the aqueous solutions because hexanes and water are immiscible. ...
Reactions between aqueous solutions are generally fast. ... Obtain about 120 mL of hydrochloric acid solution in a 250 mL beaker. ... Let some of the solution run rapidly from the buret to expell all air bubbles from the tip and bring the level of the solution down to the calibrated region of the buret. ... Initially a pink colour appears, and then disappears quickly, at the point where the sodium hydroxide solution comes in contact with the solution in the flask. ... From this point on, the sodium hydroxide solution should be added drop by drop untill one drop turns the entire solution in t...
