MOLARITY OF A CARROT

Before Monday you need to have this done TITLE INTRODUCTION What Chem (&Bio) principles are being tested? HYPOTHESIS What will happen to the carrots? (4 of them one for each solution) PRELAB PG 347

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LAB SETUP

Groups of 4-5 ppl Use the blue/green cups

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The top ridge is 400mL USE A WEIGHBOAT

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NO chemicals directly on the scales!!

Don’t forget your DAY 1 data Where to put them?

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Per 1: By the “STATION 2” sign

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Per 2: By the “STATION 4” sign HW: work on lab write up (thru results table)

MATERIALS PROCEDURES - HOW did you make up the 4 sol’ns?

- WHAT are you doing with those sol’ns?

RESULTS - Create your own data table CONCLUSION Answer the questions here

Double Check Your Math 400mL of a 0.5M NaCl solution:

0.5M = x mol 0.4L

= 0.2mol of NaCl (0.2mol)(58.44g/mol) = 11.69g

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DAY 2

Get your “Day 2” measurements

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Clean up your mess

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Rinse out cups and turn upside down to dry

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Throw your carrots away Work on your lab write up