Question

It was observed that heat is evolved when 25g of sodium hydroxide is dissolved in 100 mL of pure
water. Do you think there will be any change in mass of the solution? Find the mass percentage of
the solution?

Answer 1

Answer:

Mass% =Mass of solute/ mass of solution

mass of solute =25g

mass of solvent= 100ml

mass%= 25/100 =0.25