Calculate the osmolarity of the following solutions and determine which is higher:
5.00 (m/v)% Ca(OH)₂ or 0.750 M Ca(OH)₂

• A. 5.00 (m/v)% Ca(OH)₂ = 2.02 osmol/L Ca(OH)₂
  0.750 M Ca(OH)₂ = 2.25 osmol/L Ca(OH)₂
  0.750 M Ca(OH)₂ has greater osmolarity than 5.00 (m/v)% Ca(OH)₂.
• B. 5.00 (m/v)% Ca(OH)₂ = 0.675 osmol/L Ca(OH)₂
  0.750 M Ca(OH)₂ = 0.750 osmol/L Ca(OH)₂
  0.750 M Ca(OH)₂ has greater osmolarity than 5.00 (m/v)% Ca(OH)₂.
• C. 5.00 (m/v)% Ca(OH)₂ = 2.25 osmol/L Ca(OH)₂
  0.750 M Ca(OH)₂ = 2.02 osmol/L Ca(OH)₂
  5.00 (m/v)% Ca(OH)₂ has greater osmolarity than 0.750 M Ca(OH)₂.
• D. 5.00 (m/v)% Ca(OH)₂ = 0.750 osmol/L Ca(OH)₂
  0.750 M Ca(OH)₂ = 0.675 osmol/L Ca(OH)₂
  5.00 (m/v)% Ca(OH)₂ has greater osmolarity than 0.750 M Ca(OH)₂.

Answer: (A)