117.0g of sodium chloride was dissolved in the solubility in 1.0dm3 of distilled water at…

117.0g of sodium chloride was dissolved in the solubility in 1.0dm3 of distilled water at 25oC. Determine the solubility in mol dm-3 of sodium chloride at that temperature
[Na = 23, Cl = 35.5]
  • A.
    1.0
  • B.
    2.0
  • C.
    3.0
  • D.
    4.0
Correct Answer: Option B
Explanation

Relative molecular mass of NaCl = 23 + 35.5 = 55.5 g/mol
No. of mole of NaCl = 117/55.5 = 2.1 mol

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