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If you were to stir salt in water until the salt disappeared, which is the solute?
6. Chemical Quantities & Aqueous Reactions
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Which of the following statements is true regarding the potential of a 20% (by mass) solution of Sodium Thiosulfate and a 6% (by mass) solution of Sodium Hypochlorite to cause second-degree burns?
A
Only the Sodium Thiosulfate solution can cause second-degree burns.
B
Only the Sodium Hypochlorite solution can cause second-degree burns.
C
Both solutions can cause second-degree burns due to their high concentration.
D
Neither solution can cause second-degree burns as they are not highly corrosive.
Verified step by step guidance1
Identify the chemical nature of Sodium Thiosulfate and Sodium Hypochlorite. Sodium Thiosulfate is typically used as a reducing agent and is not known to be highly corrosive. Sodium Hypochlorite, on the other hand, is a strong oxidizing agent and is commonly used as a disinfectant and bleach.
Understand the concept of concentration by mass percentage. A 20% (by mass) solution means 20 grams of solute per 100 grams of solution, and a 6% (by mass) solution means 6 grams of solute per 100 grams of solution.
Evaluate the potential of each solution to cause chemical burns. Chemical burns are typically caused by corrosive substances. Sodium Hypochlorite, being a strong oxidizer, can cause skin irritation and burns at higher concentrations.
Consider the concentration levels. A 6% solution of Sodium Hypochlorite is relatively concentrated for household bleach, which can cause skin irritation and potentially burns upon prolonged exposure.
Conclude based on the chemical properties and concentrations. Sodium Thiosulfate is not corrosive and unlikely to cause burns, while Sodium Hypochlorite, even at 6%, can cause second-degree burns due to its oxidizing nature.
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