Calculate the concentration in M of a solution made up of 0.120 g oxalic acid dissolved...

Question

Question

Calculate the concentration in M of a solution made up of 0.120 g oxalic acid dissolved in 40 ml of deionized water. With steps, please!

science chemistry

Answer 1

Answer #1

Molar mass of oxalic acid (COOH)2

= 90.0 g/mol.

Mass of oxalic acid = 0.120 g

Moles of oxalic acid

= ( Mass/molar mass)

= {0.120(g) /90.0(g/mol)}

= 0.00133

Molarity =

(moles of oxalic acid × 1000/volume of deionized water)

= 0.0013(mol) x 1000 40(mL)

= 0.033 (mol/L) or M.

Therefore, molar concentration of oxalic acid is 0.033 M.

Answer 2

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