Chemical Reactions Lab baking soda lemon juice
Name______________________________________ Chemical Reactions Lab#1: Baking Soda and Lemon Juice
Period_________
Balance the Equation: __C6H8O7 + __NaHCO3 --> __CO2 + __H2O + __Na3C6H5O7
Problem: How do you know a chemical reaction has taken place?
Hypothesis: If I mix baking soda, Lemon juice, and brothymol blue, then a chemical reaction will take place
Materials: baking soda brothymol blue
thermometer lemon juice balance pH
Procedures:
1.Identify the state of matter, pH, and color of the baking soda and lemon juice 2.Place the brothymol blue into the container of baking soda. 3.Record observations 4.Pour the brothymol blue into the container of lemon juice. 5.record observations 6.Place the thermometer into the lemon juice and record the starting temperature 7.place the bag onto the balance 8.gently pour the baking soda into the lemon juice. 9.Record the pH, color, state of matter, and other evidences of chemical reactions 10. Watch the thermometer, once the temperature stops changing record it
Identify the compounds: Reactants: Baking soda (NaHCO3) is a ______________ compound lemon juice (C6H8O7) is a _______________ compound Products: Carbon Dioxide (CO2) is a ______________ compound Water (H2O) is a ______________ compound Carbonic Acid (Na3C6H5O7) is a _____________ compound
Date Tables
Baking Soda
State of Matter
Color
Temperature
X
pH
Mixed with Bromthymol Blue
Other
lemon juice
Both
Signs of a Chemical Reaction: __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________
Title: Change in energy during an Exothermic/Endothermic Reaction
Label _______________________
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