Qualitative Analysis of Solutions
Problem
Which of the solutions is hydrochloric acid, sodium hydroxide, sodium chloride, and sucrose?
Prediction
I predict that the sucrose will have a neutral PH and be non conductive. The sodium chloride will have a neutral PH and conduct electricity. The sodium hydroxide will be basic and conduct, and I predict that the hydrochloric acid will be acidic and conduct.
Design
On Sheet
Materials
Apron
Safety Goggles
Solutions A, B, C, and D
Four 50 mL Beakers
Conductivity Tester
Distilled Water
Red Litmus Paper
Blue Litmus Paper
Procedure
On Sheet
Evidence
Solution A was conductive, and turned red litmus paper blue.
Solution B was non conductive, and did not turn the litmus paper another color.
Solution C was conductive, and turned blue litmus red.
Solution D was conductive, and did not turn the litmus paper another color.
Analysis
The base, sodium hydroxide, was solution A.
The acid, hydrochloric acid, was solution C.
The Sucrose was solution B.
The salt, sodium hydroxide, was solution D.
Thanks, Sam. Well done.
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