Law of Conservation of Mass Lab: Iron Nitrate and Baking Soda

Put on Safety Goggles

Part A: Iron (III) nitrate and Sodium hydroxide

Step 1: Practice holding test tube and sliding it into the flask

Part B: Baking Soda and Vinegar

Step 1: Measure and record mass of empty beaker

Measure 5ml of sodium hydroxide and pour into the empty flask

Reset balance and make sure it reads 0

Clean all equipment as directed and place them in storage

Pour 3ml of Iron (III) nitrate into the test tube; slide the test tube into the flask without mixing the contents

Record the physical properties of the reactants before mixing

Record the total mass of the flask and its contents

Slowly tip the flask to allow all of the two solutions to mix. record the mixture's physical properties

Record the total mass of the flask and its contents again

Put 3g of sodium bicarbonate into the beaker; measure and record the total mass

Record the total mass of empty graduated cylinder

Add the 10ml Vinegar to the graduated cylinder; record the total mass

Calculate the total mass of the reactants (only vinegar and baking soda)

Record the physical properties of the reactants before mixing

Pour all of the vinegar into the beaker with sodium bicarbonate; wait 2 minutes for the reaction to complete

When the reaction has stopped, record the physical properties of the mixture.

Measure and record the total mass of the beaker and its contents

Calculate the total mass of the products