Problemas
Question 3 (2 points) Shelen measures Sig of KCl and stira it into 100mL of water at room temperature. He notices some crystals still on the bortom that will not more, and eventually decides that the remaining crystals will not dissolve regardless of how long they are agitated. What conclusion can Shelen reasonably make based on his results? Agitation has no effect on solubility. b Temperature has no effect on solubility c KCl has a maximum molarity. Beyond that,no further crystals can be dissolved KCl is nonpolar KCl is a nonelectrolyte Ket in not soluble in water. 9 Steferis sample of KC was impure (contaminated)
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professionell · Tutor durante 6 años
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Respuesta
The most reasonable conclusion Shelen can make based on his results is that KCl has a maximum molarity. Beyond that, no further crystals can be dissolved.
Explicación
## Step 1The problem presents a scenario where Shelen is dissolving KCl (Potassium Chloride) in water. Despite his efforts to stir the solution, some crystals remain undissolved at the bottom. This observation leads to a conclusion about the solubility of KCl in water.## Step 2The first option, "Agitation has no effect on solubility," is not supported by the scenario. Shelen's observation of undissolved crystals indicates that agitation does not change the solubility of KCl in this case.## Step 3The second option, "Temperature has no effect on solubility," is also not supported by the scenario. The temperature is not mentioned, and the scenario does not provide any information about the temperature's effect on solubility.## Step 4The third option, "KCl has a maximum molarity. Beyond that, no further crystals can be dissolved," is the most reasonable conclusion based on the scenario. The presence of undissolved crystals indicates that the solution has reached its maximum solubility for KCl at the given conditions.## Step 5The fourth option, "KCl is nonpolar," is not relevant to the scenario. The polarity of KCl is not discussed or implied in the scenario.## Step 6The fifth option, "KCl is a nonelectrolyte," is also not relevant to the scenario. The electrolytic properties of KCl are not discussed or implied in the scenario.## Step 7The sixth option, "KCl is not soluble in water," is not supported by the scenario. The presence of undissolved crystals does not mean KCl is not soluble in water; it means the solution has reached its maximum solubility.## Step 8The seventh option, "Shelen's sample of KCl was impure (contaminated)," is not supported by the scenario. The scenario does not provide any information about the purity of the KCl sample.