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Identifying solutions
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| Several solutions of known substances were tested for conductivity and pH. The conductivity of a solution is the measure of how easily an electric current is conducted through the solution. Complete the table below. Click on the test button to see the test for each substance. | ||||||||||||||||||||||||||||||||||||
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Hydrochloric and sulfuric are strong acids while citric and carbonic are weak acids. What can you conclude about the conductivity of weak and strong acids? Caustic soda is a strong base while ammonia is a weak base. What can you conclude about the conductivity of strong and weak bases? Are all neutral solutions good conductors of electricity? |
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| Four solutions of sugar, sulfuric acid, salt and ammonia were created and labeled "A", "B", "C" and "D". In an attempt to identify the solutions tests on pH and conductivity were carried out on each solution. Click to see the tests and complete the table below.. | ||||||||||||||||||||||||||||||||||||
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When dissolving, some substances create negative and positive particles in the water. The more of these charged particles that are created the greater the conductivity of the solution. Explain why salt has a greater
conductivity than sugar. Click to
see a tiny salt crystal dissolving in water. |
