Lab Report

252 WordsFeb 27, 20142 Pages
Jose Flores 6th period 1-27-14 LAB REPORT Introduction: A substance can conduct an electrical current if it is made of positively charged and negatively charged particles that are free to move about and is called a conductor. The purpose is to figure out conductivity of substances and to check which one conducts electricity. The hypothesis is that sucrose would be the only one that could not conduct out of the other six solutions. Materials: The materials used in this lab where six solutions , napkins, 2 pairs of gloves, 2 cups (1 cup with distilled water and 1 cup with solid NaCI) and a conductivity meter. The six solutions are sodium chloride, hydrochloric acid, sodium hydroxide, acetic acid, ammonia and sucrose. The conductivity meter was used to show if mobile ions are present. Data: | Solutions | Classify as either covalent or ionic compound | Conductivity: strong weak none | Compound is: strong weak non electrolyte | 1 | Sodium chloride | Ionic | None | non | 2 | Hydrochloric acid | Covalent | Strong | Strong | 3 | Sodium hydroxide | Ionic | Strong | Strong | 4 | Acetic acid | Ionic | Weak | Weak | 5 | Ammonia | Ionic | Weak | non | 6 | Sucrose | covalent | None | none | Based on the data hydrochloric acid and sodium hydroxide are strong. Sodium chloride and sucrose have none conductivity and non electrolyte. Acetic acid and ammonia are weak. Conclusion: Analyzing the data I found out that my hypothesis is right. Sucrose did not have positively or negative particles with made it none conductivity and non electrolyte. Based on the the lab the hypothesis was

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