The graph below shows how solubility changes with temperature.
1 answer:
The two solutions that have similar solubilities at 40°C will be Na₂HAsO₄ and Na₂SO₄.
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What is solubity ? </h3>
It is the ability of a solute to be dissolved , especially in water .
As the temperature increases the solubility of the gas generally decreases "
According to given information and graph attached as reference ;
Solubility of NaCl (sodium chloride) at 40°C is 36.3 grams . Solubility of Na₂SO₄ (sodium sulfate) at 40°C is 48.8 grams . Solubility of Na₂HAsO₄ (sodium arsenate dibasic) at 40°C is 48.9 grams. Solubility of Ba(NO₃)₂ (barium nitrate) at 40°C is 14.1 grams. Solubility of Ce₂(SO₄)₃·9H₂O (ceasium sulfate nonahydrate) at 40°C is 6.2 grams.
Lear more about solubility here ;
brainly.com/question/19221092
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