what mass of KCl would be needed to form a saturated solution if the KCl was dissolved in 200g of water at 80 C?
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ANSWER:
Attached we can observe the graph of solubility. For KCl at 80 ° C, 50 g of KCl are required per 100 g of water.
We apply a simple rule of three, we have:
50 g KCl ---------> 100 g water
X --------------------> 200 g water
X = 200 g water · 50 g KCl / 100 g Water
X = 100 g KCl
Therefore, 100 g of KCl is needed to obtain a mixture saturated with 100 g of water at a temperature of 80 ° C.
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danitajulip8sqcq:
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