Question

Choosing only the substances from the list given below, write the equations for the reactions which you would use in the laboratory to obtain:

Dilute sulfuric acid, copper, iron, sodium, zinc, copper carbonate, sodium carbonate

(b) Copper sulfate

Answer 1

Material used:

• Dilute Sulfuric acid $\left({\mathrm{H}}_2{\mathrm{SO}}_4\right)$
• Copper $\left(\mathrm{Cu}\right)$

Reaction summary:

• This reaction can be carried out using dilute acid and an active metal. The salt so formed then passes into the solution and can be obtained by crystallization.
• When copper $\left(\mathrm{Cu}\right)$ reacts with dilute Sulfuric acid $\left({\mathrm{H}}_2{\mathrm{SO}}_4\right)$ it will form Copper sulfate $\left({\mathrm{CuSO}}_4\right)$ and Hydrogen gas$\left({\mathrm{H}}_2\right)$ is liberated.

Balanced chemical reaction:

$\mathrm{Cu}\left(\mathrm{s}\right)+{\mathrm{H}}_2{\mathrm{SO}}_4\left(\mathrm{dil}.\right)\to {\mathrm{CuSO}}_4\left(\mathrm{aq}\right)+{\mathrm{H}}_2\uparrow$