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Which of these solutions are unsaturated?

2.00 g of PbCl2 at 80°C

100.2 g of NaNO3 at 60°C

128 g of KI at 0°C

75.5 g of LiCl at 20°C

8.22 g of Ba(OH)2 at 40°C

Which of these solutions are saturated?

8.22 g of Ba(OH)2 at 40°C

128 g of KI at 0°C

2.00 g of PbCl2 at 80°C

100.2 g of NaNO3 at 60°C

75.5 g of LiCl at 20°C

Respuesta :

Answer:

2.00 g of PbCl2 at 80°C  is unsaturated

100.2 g of NaNO3 at 60°C is unsaturated

128 g of KI saturated

75.5 g of LiCl at 20°C is unsaturated

8.22 g of Ba(OH)2 at 40°C is saturated

Explanation:

To determine if a solution is (un)saturated, we should take a look at the solubility for the given temperature.

2.00 g of PbCl2 at 80°C

⇒ At 80 °C, the max solubility of PbCl2 is 2.54 grams / 100 mL

⇒ 2.00 < 2.54  

⇒ This solution is unsaturated

100.2 g of NaNO3 at 60°C

⇒ At 60 °C, the max solubility of NaNO3 is 122 grams / 100 mL

⇒ 100.2 < 122

⇒ This solution is unsaturated

128 g of KI at 0°C

⇒ At 0 °C, the max solubility of KI is 128 grams / 100 mL

⇒ 128 = 128

⇒ This solution is saturated

75.5 g of LiCl at 20°C

⇒ At 20 °C, the max solubility of LiCl is 83.5 grams / 100 mL

⇒ 75.5<83.5

⇒ This solution is unsaturated

8.22 g of Ba(OH)2 at 40°C

⇒ At 40 °C, the max solubility of Ba(OH)2 is 8.22 grams / 100 mL

⇒ 8.22 = 8.22

⇒ This solution is saturated

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