You have a solution that is 18.5% (v/v) methyl alcohol. if the bottle contains 2.40 l of solution, what is the volume (v) in milliliters of methyl alcohol?

V/v percentage is the percentage of volume of methyl alcohol from the whole solution.
v/v % percentage of methyl alcohol is 18.5 %
in 100 mL of solution - 18.5 mL is methyl alcohol 
therefore in 2 400 mL - 18.5 / 100 x 2400 = 444 mL of methyl alcohol 
in 2.40 L of solution - there are 444 mL of methyl alcohol

Answer is: the equilibrium  shifts toward the reactants, to the left side of chemical reaction.it is because lead(ii) nitrate dissociates in water: pb(no₃)₂ → pb²⁺(aq) + 2no₃⁻(aq).according to lechatelier's principle, the position of equilibrium moves to counteract thechange (more lead cations, common ion), the position of equilibrium will move so that the concentration ofproducts decrease and concentration of reactants of chemical reaction increase.read more on -