Question

Suatu pabrik asam sulfat memproduksi H2SO4 98% massa dan massa jenisnya 1,82 g mL^-1 .sebanyak 10 ml H2SO4 tersebut molaritasnya ​

Answer 1

massa jenis = 98%.1,82 g/cm^3 = 1,7836 g/cm^3

massa jenis = massa/volume

1,7836 g/cm^3 = m/10 ml

17,836 g = m

mol = massa/Mr

mol = 17,836 g/98 g/mol

mol = 0,182 mol

M = mol/V = 0,182 mol/0,01L

= 18,2 M