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Attempts 127

Extract:

solubility graph

What is the maximum amount of KClO₃ that can be dissolved in 50 grams of water at 30°C?

  1. A
    5 grams
  2. B
    10 grams
  3. C
    20 grams
  4. D
    70 grams

Topic Flashcards

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Question

What is the definition of solubility for a solid in water?

Answer

The maximum mass of solute that can dissolve in a given mass of solvent (usually 100 g) at a specified temperature to form a saturated solution.

Question

If the solubility of KClO₃ is 10 g per 100 g of water at 30°C, how much can dissolve in 50 g of water at the same temperature?

Answer

5 grams. Calculation: (10 g / 100 g) × 50 g = 5 g.

Question

How do you calculate the mass of solute that can dissolve in a different mass of solvent when you know the solubility per 100 g?

Answer

Use a proportion: (Solubility in g / 100 g solvent) = (X g / Given solvent mass). Then solve for X.

Question

Using the same solubility data (10 g/100 g H₂O at 30°C), what is the maximum mass of KClO₃ that can dissolve in 200 g of water?

Answer

20 grams. (10 g/100 g) × 200 g = 20 g.

Mini Quiz

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What term describes a solution that contains the maximum possible amount of dissolved solute at a given temperature, with no undissolved solid present?

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