From the diagram above the mass of crystals deposited when 1 dm ³ of a saturated solution of NaCl is cooled from 80 ^oC to 60^oC is
[Na = 23, Cl = 35.5]

• A.117.00 g
• B.58.50 g
• C.11.70 g
• D.5.85 g
• E.