Question

when 1.438 gm of zinc is added to copper sulphate solution, 1.398 gm of copper is precipitated. If equivalent weight of copper is 31.77, find out the equivalent weight of zinc .​

Answer 1

Answer....

$\tt { \frac{Weight \: of \: Zn}{Weight \: of \: precipitated \: Cu} = \frac{Equivalent \: weight \: of \: zinc }{Equivalent \: weight \:of\: copper}}$

$\tt { \frac{1.438}{1.398}= \frac{Equivalent \: weight \: of \: Zn}{31.77}}$

$\tt {Equivalent \:weight \:of \:zinc = \frac{31.77 × 1.438}{1.398}}$

$\tt {= 32.68}$

Hence, The equivalent weight of zinc is 32.68.