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A solution of oxalic acid is …

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A solution of oxalic acid is prepared by dissolving 0.63g of acid in 250cm cube of the solution .calculate molarity
  • 1 answers

Yogita Ingle 5 years, 3 months ago

Volume of the Solution = 250 cm³. 
= 250 mL.
= 250 × 10⁻³ L. 
Mass of the Oxalic Acids = 0.63 grams. 
Molar Mass of the Oxalic Acid = 1236 g/mole. 
For molarity,
∵ No. of moles = Mass/Molar Mass
∴ No. of moles = 0.63/126
    = 5 × 10⁻³ moles. 
Using the Formula,
Molarity (M)  = No. of moles of the Solute/Volume of the Solution in liter

∴ M = (5 × 10⁻³)/(250 × 10⁻³)
   M = 0.02 M
Hence, the molarity of the solution is 0.02 M. 

 

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