A lab worker tests the characteristics of a particular compound. The table shows the results.TestResultMelting point770oCConductivityConducts electricitySolubility in H2OSolubleSolubility in OilInsolubleWhich compound could be described by the data given?A CO2B C6H12O6 C NH3D KCl
Question
A lab worker tests the characteristics of a particular compound. The table shows the results.TestResultMelting point770oCConductivityConducts electricitySolubility in H2OSolubleSolubility in OilInsolubleWhich compound could be described by the data given?A CO2B C6H12O6 C NH3D KCl
Solution
Based on the given data, we can analyze the characteristics of the compound and determine which one matches the description. Let's go through each characteristic one by one:
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Melting point: The compound has a melting point of 770oC. This indicates that it has a relatively high melting point.
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Conductivity: The compound conducts electricity. This suggests that it contains ions or free-moving charged particles.
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Solubility in H2O: The compound is soluble in water. This means that it can dissolve in water.
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Solubility in Oil: The compound is insoluble in oil. This means that it does not dissolve in oil.
Now, let's compare these characteristics with the options given:
A. CO2: Carbon dioxide has a melting point of -78.5oC, which is significantly lower than the given melting point of 770oC. Additionally, CO2 is not soluble in water.
B. C6H12O6: Glucose has a melting point of 146-150oC, which is lower than the given melting point. It is soluble in water, but it is also soluble in oil, which contradicts the given data.
C. NH3: Ammonia has a melting point of -77.7oC, which is lower than the given melting point. It is soluble in water, but it is also soluble in oil, which contradicts the given data.
D. KCl: Potassium chloride has a melting point of 770oC, which matches the given melting point. It is soluble in water, but it is insoluble in oil, which matches the given data.
Based on the analysis, the compound that could be described by the given data is option D, KCl.
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