Question

Calculate the mass of oxalic acid dihydrate (H2C2O4.2H2O) required to prepare 0.1M, 250 ml of its aqueous

solution.​

Answer 1

Answer: 3.15g

Explanation:

Molarity = no.of mol of solute/volume of solution in L

0.1 = no.of mol/(250/1000)L

No.of mol = 0.1/4= 0.025

Wt. =( 0.025mol)×(126g/mol)

= 3.15g