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MOnsterBunnyNi

  • 2 years ago

A 68.4-g sample of potassium chloride was added to 200.0 g of water at 20 ºC. Is the solution saturated, unsaturated, or supersaturated? Use Figure 8-2 to answer this question

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  1. MOnsterBunnyNi
    • 2 years ago
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  2. Australopithecus
    • 2 years ago
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    We know from the table that potassium chloride has a solubility of 34.2g in a 100g of water at 20 C is a 100% saturation of water 34.2g/100g = 0.342grams of KCl per gram of Water now we have 200g of water and 68.4g of KCl, take the ratio and compare it to what is given in the table 68.4g/200g = 0.342 grams of KCl per gram of water now lets check percent saturation grams of KCl per gram of water of prepared solution --------------------------------------------- * 100 = percent saturation grams of KCl per gram of water of reference solution) so (0.342/0.342)*100 = 100% saturation You should know be able to deduce the answer knowing that Saturated is when a solvent is holding as much solute as it possibly can. Super saturated is when the solvent is overloaded with solute and thus some of it is probably not in solution any more unsaturated is when the solvent contains some solute but can hold more without it leaving it. So take example cool aid if you add a tiny amount of the sugar to a huge glass of water you have an unsaturated solution If you added a specific amount to where the solvent contains the max amount of sugar before it starts coming out of solution you have a saturated solution If you add so much that there is powder on the bottom of the glass you have a super saturated solution

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