I. Write an Hypothesis :  ( We will mix an acid and a base.  What will happen?)

II. Materials : ( List the materials needed to complete the lab )  Some materials are    0.1 M HCl, 0.1 M NaOH, dropper bottles, spot plate, beakers, etc... Add to the list, use specific names and measurements.

Safety Note : Goggles must be worn during the lab.  Wash off any chemicals that touch your skin immediately and report the incident.

III. Procedure :     Write out a complete procedure in an outline form :

A. Obtain materials and set up the experiment.   ( Name the materials and safety equipment needed. What is your set up?)   

                                   1. 

                                   2.

                                   3. 

B. Test the pH NaOH and HCl :   

                                   1.  Test the pH of the HCl: Put five drops of HCl into the spot plate.

                                    2.  Test the pH with multi-range pH paper by dipping the paper into the solution and matching the color on the chart on the side of the bottle.  Place the paper on the desk.  Record the pH in a data table.

                                    3. Test the pH with a digital pH meter. a.  Put DI  water into the plastic cap,  and add five drops of the test chemical to the cap. Wait for the numbers to stop changing.  Record the reading. Rinse the glass bulb of the meter with D.I.Water.

                                    4.Test the pH of the NaOH :  Put five drops of NaOH into a different spot on the spot plate.  ( Test the pH ...Write out a procedure based on the one above part 1 & 2.)

C. Do the Neutralization Reaction:  Mix the Reactants:  1. In a third spot on the plate mix another five drops of NaOH and HCl .  Test the pH with the paper ....explain what you did   and    Record the pH .  

                                    2.

                                    3. ( Test the pH after the reaction with pH paper and the pH meter...How will you do that?  Look at your previous procedures.  The bulb must touch the solution to read the pH.)

                                    4. Make an observation and record it.

D. Evaporation of the Product : 

                               1. obtain 200 to 300 mL beaker.  Clean it!

                                    2. Do the reaction again, in the beaker..(How many drops will you use of each chemical?  15 -20 drops of each).

                                    3. Place the beaker onto an electric heater and boil off the water. What temperature does water boil at?  Heat until the water evaporates, then turn off the heater.  You may use beaker tongs to remove the beaker from the heater.  It can be placed onto the desk top directly.

                                    4. Observe the result and record it in the data table.

IV. DATA    ( Create a data table based on the procedure.  You will be graded on completeness and on descriptions.)

V . Conclusions and Questions:   

        A. Conclusions :   Based on the evidence collected from the experiment, state a claim about the reaction between the acid and base.

        B.  Questions :     1. Which chemical was the acid? Which was the base?

                                   2. What is the pH range for acids?  bases?

                                   3. Write out the reaction in words.

                                   4. Write out the balanced chemical equation. 

                                    5. Which method of measuring pH is more accurate? Why?

                                    6. Use the textbook and the  web: name three acids and three bases that are in your house.

                                    7. What remains in the evaporation dish after the liquid is gone?  What is the name of the substance?