Testing the Conductivity of Molecular and Ionic Solutions lab 1

Testing the Conductivity of Molecular and Ionic Solutions lab 1

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Testing the Conductivity of Molecular and Ionic Solutions Hypothesis: The ionic solutions will conduct more electricity than the molecular solutions because ionic solutions break down into ions which can carry electricity better than molecular solutions which do not break down into ions. My hypothesis was proved true when we tested the conductivity of the seven solutions and the ionic solutions such as salt and calcium chloride had a higher conductivity reading than molecular solutions such as ethanol and sucrose. Conductivity Measure of Solutions: Solution Material Conductivity (µS/cm) 1 Distilled water 0 2 Sodium chloride (NaCl) 5,805 3 Calcium chloride (CaCl 2 ) 6,998 4 Ferric chloride (FeCl 3 ) 20,450 5 Ethanol (C 2 H 6 O) -38 6 Sucrose (C 12 H 22 O 11 ) -10 7 Glucose (C 6 H 12 O 6 ) -10 8 Stream water -277 Controls: The negative control in our experiment was the distilled water because we knew its conductivity would be 0. The positive controls in our experiment were the ionic solutions because we knew they would have a positive conductivity measurement.
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