Question

Calculate the molarity of 22.1 g22.1 g of MgSMgS in 779 mL779 mL of solution.

Answer 1

solution. Given that's mass of mos = 22:19 volume (W) = 775 ml or 779x103L : molar mass of mos = 56.389 Imol * 1L=1000ml mgs = 56.387 Imol 142 0.41 so moles of mgs = 22:19 => 0.391308 56.38g/mol - (1 sig. fig.) .: molarity = moles of solute (mol) volume of solution (1) = 0.4 mol m) 0.513478819 - 015 M (1 Sig. fig.) 779X10-31 molarity = 0.5M Ames