The molarity of the solution is 10M which means that 10molof H2SO4 is present in 1000mL or 1L of solution. The molar mass of H2SO4 is 98g∕mol The mass of H2SO4 in 1000 mL of solution can be calculated as shown below. Mass of H2SO4= Moles × Molar mass =10mol×98g∕mol =980g The mass of H2SO4 in 50mL of solution can be calculated asshown below. Mass‌of‌H2‌SO4=
980g×50mL
1000mL
=49g So, the mass of solute is 49 g. The mass of solution can be calculated as shown below. Mass of solution = Density × Volume =1.4g∕mL×50mL =70g Mass of solvent = Mass of solution - mass of solute =70−49 =21g The molality of the solution can be calculated as follows. Molality =