CHEMISTRYJANUARY 12, 2015

LAB 09 – PART 1

PRE-LAB• TURN ON COMPUTER• TAKE THE PAPER AND ANSWER THE

PRE-LAB QUESTION–CAN SALTWATER BE UTILIZED TO

POWER A LIGHT BULB?

AIM

•CAN SALTWATER BE UTILIZED TO POWER A LIGHT BULB?

PHET SIMULATION

• GO TO LABS (link on the left side)• Click on the Labs folder• Scroll to the bottom and choose

Lab 09 – Ionic/Covalent• Today we are working on the

Macro Tab lab portion

PHET SIMULATION

• Click on the PHET Simulation to launch it• Follow the instruction to launch the simulation

PURE WATER

• In this lab we are looking at conductivity.• First we will see if water alone is able to

conduct electricity. Do steps 1 and 2 and record your observations.

SALT

• Now let’s see what happen when you add salt to water.

• Do step 4 and record your observation and answer the question. This should take about 5 minutes.

SUGAR

• RESET THE SIMULATION• NOW, GO TO STEP 5-6 AND PERFORM THE

STEPS BY ADDING SUGAR TO THE MIX.• WHAT HAPPENS?

POST LAB

• What is the bond that exists in salt (NaCl)?• What is the bond that exists in sugar

(C12H22O11?• Does ionic compound conduct electricity?• Does covalent compound conduct electricity?

AIM PROMPT

• RESPOND TO THE FOLLOWING:– AIM Prompt: Can saltwater be utilized to conduct

electricity? • Respond in paragraph form and make sure to

use the RACE format.