4.5g of urea (molar mass = 60g "mol"^(-1)) are dissolved in water and solution is made to 100 ml in a volumetric flask. Calculate the molarity of solution.

4.5g of urea (molar mass = 60g "mol"^(-1)) are dissolved in water and

1.	4.5g of urea (molar mass = 60g "mol"^(-1)) are dissolved in water and solution is made to 100 ml in a volumetric flask. Calculate the molarity of solution.
Answer» <html><body><p></p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :Mass of Urea = 4.5 <a href="https://interviewquestions.tuteehub.com/tag/g-1003017" style="font-weight:bold;" target="_blank" title="Click to know more about G">G</a> <br/> Moles of Urea `=("Mass ")/( "Molar Mass ")=(4.5g)/(60 g " <a href="https://interviewquestions.tuteehub.com/tag/mol-1100196" style="font-weight:bold;" target="_blank" title="Click to know more about MOL">MOL</a> "^(-1))` <br/> `=0.075` mol <br/> Volume of Solution = <a href="https://interviewquestions.tuteehub.com/tag/1000-265236" style="font-weight:bold;" target="_blank" title="Click to know more about 1000">1000</a> ml =`(100)/(1000)L` <br/> `=0.1 L` <br/> Molarity of Solution =`(" Mass of solute in g")/("Volume of Solution in litres ")` <br/> `=(0.075)/(0.12) " mol " = 0.75`M</body></html>