The density of 3 M sodium thiosulphate is 1.25 g/ml. Identify the correct statements among the following

% by weight of sodium thiosulphate is 37 .92

The  mole fraction of sodium thiosulphate is 0.065

The molarity of ${\mathrm{N}}^{\mathrm{a}+}$ is 2.53 and ${\mathrm{S}}_2{\mathrm{O}}_3^{2-}$ is 1.25.

${\mathrm{S}}_2{\mathrm{O}}_3^{2-}$ contains $\mathrm{S}-\mathrm{O}-\mathrm{S}$ linkage