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8 December, 19:55

The solubility of CaCl2 in water is 25g per 50 mL of H2O. How many grams of CaCl2 will dissolved to form a saturated solution in 10 mL of water?

a. 150g

b. 5g

c. 50g

d. 0.5g

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Answers (1)
  1. 8 December, 20:12
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    Answer: option B. 5g

    Explanation:

    50mL of H2O dissolves 25g of CaCl2.

    Therefore, 10mL of H2O will dissolve Xg of CaCl2 i. e

    Xg of CaCl2 = (10 x 25) / 50 = 5g
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