Answer
$0.52\ atm$
Work Step by Step
Osmotic pressure:
$\Pi=icRT=1.94\times0.0120\ mol/L\times 0.082\ L.atm/mol.K\times (273+0)K=0.52\ atm$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.