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9 May, 18:38

A 3.60-g sample of a salt dissolves in 7.70 g of water to give a saturated solution at 21°C. What is the solubility (in g salt/100 g of H2O) of the salt?

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  1. 9 May, 19:00
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    The solubility of the salt is

    46.75g salt/100g of H2O

    Explanation:

    If 7.70g of water can dissolve 3.60g at 21°C

    That is 1.0g of water can dissolve (3.6:7.7) grams of salt, that is 0.4675_g of salt at 21°C or 100 grams of water can dissolve 100*0.4675 = 46.75g

    The solubility of the salt is

    46.75g salt/100g of H2O
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